mirror of
https://github.com/vim/vim
synced 2025-03-20 08:45:11 +01:00
1210 lines
28 KiB
C
1210 lines
28 KiB
C
/* vi:set ts=8 sts=4 sw=4:
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*
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* if_sniff.c Interface between Vim and SNiFF+
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*
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* $Id$
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*
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* See README.txt for an overview of the Vim source code.
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*/
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#include "vim.h"
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#ifdef WIN32
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# include <stdio.h>
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# include <fcntl.h>
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# include <io.h>
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# include <process.h>
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# include <string.h>
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# include <assert.h>
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#else
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# ifdef FEAT_GUI_X11
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# include "gui_x11.pro"
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# endif
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# include "os_unixx.h"
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#endif
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static int sniffemacs_pid;
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int fd_from_sniff;
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int sniff_connected = 0;
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int sniff_request_waiting = 0;
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int want_sniff_request = 0;
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#define MAX_REQUEST_LEN 512
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#define NEED_SYMBOL 2
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#define EMPTY_SYMBOL 4
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#define NEED_FILE 8
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#define SILENT 16
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#define DISCONNECT 32
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#define CONNECT 64
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#define RQ_NONE 0
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#define RQ_SIMPLE 1
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#define RQ_CONTEXT NEED_FILE + NEED_SYMBOL
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#define RQ_SCONTEXT NEED_FILE + NEED_SYMBOL + EMPTY_SYMBOL
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#define RQ_NOSYMBOL NEED_FILE
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#define RQ_SILENT RQ_NOSYMBOL + SILENT
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#define RQ_CONNECT RQ_NONE + CONNECT
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#define RQ_DISCONNECT RQ_SIMPLE + DISCONNECT
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struct sn_cmd
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{
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char *cmd_name;
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char cmd_code;
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char *cmd_msg;
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int cmd_type;
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};
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struct sn_cmd_list
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{
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struct sn_cmd* sniff_cmd;
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struct sn_cmd_list* next_cmd;
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};
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static struct sn_cmd sniff_cmds[] =
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{
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{ "toggle", 'e', N_("Toggle implementation/definition"),RQ_SCONTEXT },
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{ "superclass", 's', N_("Show base class of"), RQ_CONTEXT },
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{ "overridden", 'm', N_("Show overridden member function"),RQ_SCONTEXT },
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{ "retrieve-file", 'r', N_("Retrieve from file"), RQ_CONTEXT },
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{ "retrieve-project",'p', N_("Retrieve from project"), RQ_CONTEXT },
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{ "retrieve-all-projects",
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'P', N_("Retrieve from all projects"), RQ_CONTEXT },
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{ "retrieve-next", 'R', N_("Retrieve"), RQ_CONTEXT },
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{ "goto-symbol", 'g', N_("Show source of"), RQ_CONTEXT },
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{ "find-symbol", 'f', N_("Find symbol"), RQ_CONTEXT },
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{ "browse-class", 'w', N_("Browse class"), RQ_CONTEXT },
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{ "hierarchy", 't', N_("Show class in hierarchy"), RQ_CONTEXT },
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{ "restr-hier", 'T', N_("Show class in restricted hierarchy"),RQ_CONTEXT },
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{ "xref-to", 'x', N_("Xref refers to"), RQ_CONTEXT },
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{ "xref-by", 'X', N_("Xref referred by"), RQ_CONTEXT },
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{ "xref-has", 'c', N_("Xref has a"), RQ_CONTEXT },
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{ "xref-used-by", 'C', N_("Xref used by"), RQ_CONTEXT },
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{ "show-docu", 'd', N_("Show docu of"), RQ_CONTEXT },
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{ "gen-docu", 'D', N_("Generate docu for"), RQ_CONTEXT },
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{ "connect", 'y', NULL, RQ_CONNECT },
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{ "disconnect", 'q', NULL, RQ_DISCONNECT },
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{ "font-info", 'z', NULL, RQ_SILENT },
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{ "update", 'u', NULL, RQ_SILENT },
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{ NULL, '\0', NULL, 0}
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};
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static char *SniffEmacs[2] = {"sniffemacs", (char *)NULL}; /* Yes, Emacs! */
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static int fd_to_sniff;
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static int sniff_will_disconnect = 0;
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static char msg_sniff_disconnect[] = N_("Cannot connect to SNiFF+. Check environment (sniffemacs must be found in $PATH).\n");
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static char sniff_rq_sep[] = " ";
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static struct sn_cmd_list *sniff_cmd_ext = NULL;
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/* Initializing vim commands
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* executed each time vim connects to Sniff
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*/
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static char *init_cmds[]= {
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"augroup sniff",
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"autocmd BufWritePost * sniff update",
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"autocmd BufReadPost * sniff font-info",
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"autocmd VimLeave * sniff disconnect",
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"augroup END",
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"let g:sniff_connected = 1",
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"if ! exists('g:sniff_mappings_sourced')|"
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"if ! exists('g:sniff_mappings')|"
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"if exists('$SNIFF_DIR4')|"
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"let g:sniff_mappings='$SNIFF_DIR4/config/integrations/vim/sniff.vim'|"
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"else|"
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"let g:sniff_mappings='$SNIFF_DIR/config/sniff.vim'|"
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"endif|"
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"endif|"
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"let g:sniff_mappings=expand(g:sniff_mappings)|"
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"if filereadable(g:sniff_mappings)|"
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"execute 'source' g:sniff_mappings|"
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"let g:sniff_mappings_sourced=1|"
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"endif|"
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"endif",
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NULL
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};
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/*-------- Function Prototypes ----------------------------------*/
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static int ConnectToSniffEmacs __ARGS((void));
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static void sniff_connect __ARGS((void));
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static void HandleSniffRequest __ARGS((char* buffer));
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static int get_request __ARGS((int fd, char *buf, int maxlen));
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static void WriteToSniff __ARGS((char *str));
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static void SendRequest __ARGS((struct sn_cmd *command, char* symbol));
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static void vi_msg __ARGS((char *));
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static void vi_error_msg __ARGS((char *));
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static char *vi_symbol_under_cursor __ARGS((void));
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static void vi_open_file __ARGS((char *));
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static char *vi_buffer_name __ARGS((void));
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static buf_T *vi_find_buffer __ARGS((char *));
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static void vi_exec_cmd __ARGS((char *));
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static void vi_set_cursor_pos __ARGS((long char_nr));
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static long vi_cursor_pos __ARGS((void));
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/* debug trace */
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#if 0
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static FILE* _tracefile = NULL;
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#define SNIFF_TRACE_OPEN(file) if (!_tracefile) _tracefile = fopen(file, "w")
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#define SNIFF_TRACE(msg) fprintf(_tracefile, msg); fflush(_tracefile);
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#define SNIFF_TRACE1(msg, arg) fprintf(_tracefile, msg,arg); fflush(_tracefile);
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#define SNIFF_TRACE_CLOSE fclose(_tracefile); _tracefile=NULL;
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#else
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#define SNIFF_TRACE_OPEN(file)
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#define SNIFF_TRACE(msg)
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#define SNIFF_TRACE1(msg, arg)
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#define SNIFF_TRACE_CLOSE
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#endif
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/*-------- Windows Only Declarations -----------------------------*/
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#ifdef WIN32
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static int sniff_request_processed=1;
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static HANDLE sniffemacs_handle=NULL;
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static HANDLE readthread_handle=NULL;
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static HANDLE handle_to_sniff=NULL;
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static HANDLE handle_from_sniff=NULL;
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struct sniffBufNode
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{
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struct sniffBufNode *next;
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int bufLen;
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char buf[MAX_REQUEST_LEN];
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};
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static struct sniffBufNode *sniffBufStart=NULL;
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static struct sniffBufNode *sniffBufEnd=NULL;
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static HANDLE hBufferMutex=NULL;
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# ifdef FEAT_GUI_W32
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extern HWND s_hwnd; /* gvim's Window handle */
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# endif
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/*
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* some helper functions for Windows port only
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*/
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static HANDLE
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ExecuteDetachedProgram(char *szBinary, char *szCmdLine,
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HANDLE hStdInput, HANDLE hStdOutput)
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{
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BOOL bResult;
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DWORD nError;
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PROCESS_INFORMATION aProcessInformation;
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PROCESS_INFORMATION *pProcessInformation= &aProcessInformation;
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STARTUPINFO aStartupInfo;
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STARTUPINFO *pStartupInfo= &aStartupInfo;
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DWORD dwCreationFlags= 0;
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char szPath[512];
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HINSTANCE hResult;
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hResult = FindExecutable(szBinary, ".", szPath);
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if ((int)hResult <= 32)
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{
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/* can't find the exe file */
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return NULL;
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}
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ZeroMemory(pStartupInfo, sizeof(*pStartupInfo));
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pStartupInfo->dwFlags= STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES;
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pStartupInfo->hStdInput = hStdInput;
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pStartupInfo->hStdOutput = hStdOutput;
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pStartupInfo->wShowWindow= SW_HIDE;
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pStartupInfo->cb = sizeof(STARTUPINFO);
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bResult= CreateProcess(
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szPath,
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szCmdLine,
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NULL, /* security attr for process */
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NULL, /* security attr for primary thread */
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TRUE, /* DO inherit stdin and stdout */
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dwCreationFlags, /* creation flags */
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NULL, /* environment */
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".", /* current directory */
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pStartupInfo, /* startup info: NULL crashes */
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pProcessInformation /* process information: NULL crashes */
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);
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nError= GetLastError();
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if (bResult)
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{
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CloseHandle(pProcessInformation->hThread);
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CloseHandle(hStdInput);
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CloseHandle(hStdOutput);
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return(pProcessInformation->hProcess);
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}
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else
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return(NULL);
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}
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/*
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* write to the internal Thread / Thread communications buffer.
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* Return TRUE if successful, FALSE else.
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*/
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static BOOL
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writeToBuffer(char *msg, int len)
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{
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DWORD dwWaitResult; /* Request ownership of mutex. */
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struct sniffBufNode *bn;
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int bnSize;
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SNIFF_TRACE1("writeToBuffer %d\n", len);
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bnSize = sizeof(struct sniffBufNode) - MAX_REQUEST_LEN + len + 1;
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if (bnSize < 128) bnSize = 128; /* minimum length to avoid fragmentation */
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bn = (struct sniffBufNode *)malloc(bnSize);
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if (!bn)
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return FALSE;
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memcpy(bn->buf, msg, len);
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bn->buf[len]='\0'; /* terminate CString for added safety */
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bn->next = NULL;
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bn->bufLen = len;
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/* now, acquire a Mutex for adding the string to our linked list */
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dwWaitResult = WaitForSingleObject(
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hBufferMutex, /* handle of mutex */
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1000L); /* one-second time-out interval */
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if (dwWaitResult == WAIT_OBJECT_0)
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{
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/* The thread got mutex ownership. */
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if (sniffBufEnd)
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{
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sniffBufEnd->next = bn;
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sniffBufEnd = bn;
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}
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else
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sniffBufStart = sniffBufEnd = bn;
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/* Release ownership of the mutex object. */
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if (! ReleaseMutex(hBufferMutex))
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{
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/* Deal with error. */
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}
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return TRUE;
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}
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/* Cannot get mutex ownership due to time-out or mutex object abandoned. */
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free(bn);
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return FALSE;
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}
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/*
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* read from the internal Thread / Thread communications buffer.
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* Return TRUE if successful, FALSE else.
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*/
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static int
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ReadFromBuffer(char *buf, int maxlen)
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{
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DWORD dwWaitResult; /* Request ownership of mutex. */
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int theLen;
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struct sniffBufNode *bn;
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dwWaitResult = WaitForSingleObject(
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hBufferMutex, /* handle of mutex */
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1000L); /* one-second time-out interval */
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if (dwWaitResult == WAIT_OBJECT_0)
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{
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if (!sniffBufStart)
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{
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/* all pending Requests Processed */
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theLen = 0;
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}
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else
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{
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bn = sniffBufStart;
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theLen = bn->bufLen;
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SNIFF_TRACE1("ReadFromBuffer %d\n", theLen);
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if (theLen >= maxlen)
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{
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/* notify the user of buffer overflow? */
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theLen = maxlen-1;
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}
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memcpy(buf, bn->buf, theLen);
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buf[theLen] = '\0';
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if (! (sniffBufStart = bn->next))
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{
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sniffBufEnd = NULL;
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sniff_request_processed = 1;
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}
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free(bn);
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}
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if (! ReleaseMutex(hBufferMutex))
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{
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/* Deal with error. */
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}
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return theLen;
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}
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/* Cannot get mutex ownership due to time-out or mutex object abandoned. */
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return -1;
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}
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/* on Win32, a separate Thread reads the input pipe. get_request is not needed here. */
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static void __cdecl
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SniffEmacsReadThread(void *dummy)
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{
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static char ReadThreadBuffer[MAX_REQUEST_LEN];
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int ReadThreadLen=0;
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int result=0;
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int msgLen=0;
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char *msgStart, *msgCur;
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SNIFF_TRACE("begin thread\n");
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/* Read from the pipe to SniffEmacs */
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while (sniff_connected)
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{
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if (!ReadFile(handle_from_sniff,
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ReadThreadBuffer + ReadThreadLen, /* acknowledge rest in buffer */
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MAX_REQUEST_LEN - ReadThreadLen,
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&result,
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NULL))
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{
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DWORD err = GetLastError();
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result = -1;
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}
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if (result < 0)
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{
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/* probably sniffemacs died... log the Error? */
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sniff_disconnect(1);
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}
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else if (result > 0)
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{
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ReadThreadLen += result-1; /* total length of valid chars */
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for(msgCur=msgStart=ReadThreadBuffer; ReadThreadLen > 0; msgCur++, ReadThreadLen--)
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{
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if (*msgCur == '\0' || *msgCur == '\r' || *msgCur == '\n')
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{
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msgLen = msgCur-msgStart; /* don't add the CR/LF chars */
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if (msgLen > 0)
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writeToBuffer(msgStart, msgLen);
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msgStart = msgCur + 1; /* over-read single CR/LF chars */
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}
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}
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/* move incomplete message to beginning of buffer */
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ReadThreadLen = msgCur - msgStart;
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if (ReadThreadLen > 0)
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mch_memmove(ReadThreadBuffer, msgStart, ReadThreadLen);
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if (sniff_request_processed)
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{
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/* notify others that new data has arrived */
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sniff_request_processed = 0;
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sniff_request_waiting = 1;
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#ifdef FEAT_GUI_W32
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PostMessage(s_hwnd, WM_USER, (WPARAM)0, (LPARAM)0);
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#endif
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}
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}
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}
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SNIFF_TRACE("end thread\n");
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}
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#endif /* WIN32 */
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/*-------- End of Windows Only Declarations ------------------------*/
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/* ProcessSniffRequests
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* Function that should be called from outside
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* to process the waiting sniff requests
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*/
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void
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ProcessSniffRequests()
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{
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static char buf[MAX_REQUEST_LEN];
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int len;
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while (sniff_connected)
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{
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#ifdef WIN32
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len = ReadFromBuffer(buf, sizeof(buf));
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#else
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len = get_request(fd_from_sniff, buf, sizeof(buf));
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#endif
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if (len < 0)
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{
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vi_error_msg(_("E274: Sniff: Error during read. Disconnected"));
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sniff_disconnect(1);
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break;
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}
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else if (len > 0)
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HandleSniffRequest( buf );
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else
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break;
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}
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if (sniff_will_disconnect) /* Now the last msg has been processed */
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sniff_disconnect(1);
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}
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static struct sn_cmd *
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find_sniff_cmd(cmd)
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char *cmd;
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{
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struct sn_cmd *sniff_cmd = NULL;
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int i;
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for(i=0; sniff_cmds[i].cmd_name; i++)
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{
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if (!strcmp(cmd, sniff_cmds[i].cmd_name))
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{
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sniff_cmd = &sniff_cmds[i];
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break;
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}
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}
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if (!sniff_cmd)
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{
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struct sn_cmd_list *list = sniff_cmd_ext;
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while(list)
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{
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if (!strcmp(cmd, list->sniff_cmd->cmd_name))
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{
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sniff_cmd = list->sniff_cmd;
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break;
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}
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list = list->next_cmd;
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}
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}
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return sniff_cmd;
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}
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static int
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add_sniff_cmd(cmd, def, msg)
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char *cmd;
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char *def;
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char *msg;
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{
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int rc = 0;
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if (def != NULL && def[0] != NUL && find_sniff_cmd(cmd) == NULL)
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{
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struct sn_cmd_list *list = sniff_cmd_ext;
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struct sn_cmd *sniff_cmd = (struct sn_cmd*)malloc(sizeof(struct sn_cmd));
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struct sn_cmd_list *cmd_node = (struct sn_cmd_list*)malloc(sizeof(struct sn_cmd_list));
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int rq_type = 0;
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/* unescape message text */
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char *p = msg;
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char *end = p+strlen(msg);
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while(*p)
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{
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if (*p == '\\')
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mch_memmove(p,p+1,end-p);
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p++;
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}
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SNIFF_TRACE1("request name = %s\n",cmd);
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SNIFF_TRACE1("request def = %s\n",def);
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SNIFF_TRACE1("request msg = %s\n",msg);
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while(list && list->next_cmd)
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list = list->next_cmd;
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if (!list)
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sniff_cmd_ext = cmd_node;
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else
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list->next_cmd = cmd_node;
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sniff_cmd->cmd_name = cmd;
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sniff_cmd->cmd_code = def[0];
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sniff_cmd->cmd_msg = msg;
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switch(def[1])
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{
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case 'f':
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rq_type = RQ_NOSYMBOL;
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break;
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case 's':
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rq_type = RQ_CONTEXT;
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break;
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case 'S':
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rq_type = RQ_SCONTEXT;
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break;
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default:
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rq_type = RQ_SIMPLE;
|
|
break;
|
|
}
|
|
sniff_cmd->cmd_type = rq_type;
|
|
cmd_node->sniff_cmd = sniff_cmd;
|
|
cmd_node->next_cmd = NULL;
|
|
rc = 1;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/* ex_sniff
|
|
* Handle ":sniff" command
|
|
*/
|
|
void
|
|
ex_sniff(eap)
|
|
exarg_T *eap;
|
|
{
|
|
char_u *arg = eap->arg;
|
|
char_u *symbol = NULL;
|
|
char_u *cmd = NULL;
|
|
|
|
SNIFF_TRACE_OPEN("if_sniff.log");
|
|
if (ends_excmd(*arg)) /* no request: print available commands */
|
|
{
|
|
int i;
|
|
msg_start();
|
|
msg_outtrans_attr((char_u *)"-- SNiFF+ commands --", hl_attr(HLF_T));
|
|
for(i=0; sniff_cmds[i].cmd_name; i++)
|
|
{
|
|
msg_putchar('\n');
|
|
msg_outtrans((char_u *)":sniff ");
|
|
msg_outtrans((char_u *)sniff_cmds[i].cmd_name);
|
|
}
|
|
msg_putchar('\n');
|
|
msg_outtrans((char_u *)_("SNiFF+ is currently "));
|
|
if (!sniff_connected)
|
|
msg_outtrans((char_u *)_("not "));
|
|
msg_outtrans((char_u *)_("connected"));
|
|
msg_end();
|
|
}
|
|
else /* extract command name and symbol if present */
|
|
{
|
|
symbol = skiptowhite(arg);
|
|
cmd = vim_strnsave(arg, (int)(symbol-arg));
|
|
symbol = skipwhite(symbol);
|
|
if (ends_excmd(*symbol))
|
|
symbol = NULL;
|
|
if (!strcmp((char *)cmd, "addcmd"))
|
|
{
|
|
char_u *def = skiptowhite(symbol);
|
|
char_u *name = vim_strnsave(symbol, (int)(def-symbol));
|
|
char_u *msg;
|
|
def = skipwhite(def);
|
|
msg = skiptowhite(def);
|
|
def = vim_strnsave(def, (int)(msg-def));
|
|
msg = skipwhite(msg);
|
|
if (ends_excmd(*msg))
|
|
msg = vim_strsave(name);
|
|
else
|
|
msg = vim_strnsave(msg, (int)(skiptowhite_esc(msg)-msg));
|
|
if (!add_sniff_cmd((char*)name, (char*)def, (char*)msg))
|
|
{
|
|
vim_free(msg);
|
|
vim_free(def);
|
|
vim_free(name);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
struct sn_cmd* sniff_cmd = find_sniff_cmd((char*)cmd);
|
|
if (sniff_cmd)
|
|
SendRequest(sniff_cmd, (char *)symbol);
|
|
else
|
|
EMSG2(_("E275: Unknown SNiFF+ request: %s"), cmd);
|
|
}
|
|
vim_free(cmd);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
sniff_connect()
|
|
{
|
|
if (sniff_connected)
|
|
return;
|
|
if (ConnectToSniffEmacs())
|
|
vi_error_msg(_("E276: Error connecting to SNiFF+"));
|
|
else
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; init_cmds[i]; i++)
|
|
vi_exec_cmd(init_cmds[i]);
|
|
}
|
|
}
|
|
|
|
void
|
|
sniff_disconnect(immediately)
|
|
int immediately;
|
|
{
|
|
if (!sniff_connected)
|
|
return;
|
|
if (immediately)
|
|
{
|
|
vi_exec_cmd("augroup sniff");
|
|
vi_exec_cmd("au!");
|
|
vi_exec_cmd("augroup END");
|
|
vi_exec_cmd("unlet g:sniff_connected");
|
|
sniff_connected = 0;
|
|
want_sniff_request = 0;
|
|
sniff_will_disconnect = 0;
|
|
#ifdef FEAT_GUI
|
|
if (gui.in_use)
|
|
gui_mch_wait_for_chars(0L);
|
|
#endif
|
|
#ifdef WIN32
|
|
while(sniffBufStart != NULL)
|
|
{
|
|
struct sniffBufNode *node = sniffBufStart;
|
|
sniffBufStart = sniffBufStart->next;
|
|
free(node);
|
|
}
|
|
sniffBufStart = sniffBufEnd = NULL;
|
|
sniff_request_processed = 1;
|
|
CloseHandle(handle_to_sniff);
|
|
CloseHandle(handle_from_sniff);
|
|
WaitForSingleObject(sniffemacs_handle, 1000L);
|
|
CloseHandle(sniffemacs_handle);
|
|
sniffemacs_handle = NULL;
|
|
WaitForSingleObject(readthread_handle, 1000L);
|
|
readthread_handle = NULL;
|
|
CloseHandle(hBufferMutex);
|
|
hBufferMutex = NULL;
|
|
SNIFF_TRACE_CLOSE;
|
|
#else
|
|
close(fd_to_sniff);
|
|
close(fd_from_sniff);
|
|
wait(NULL);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
#ifdef WIN32
|
|
_sleep(2);
|
|
if (!sniff_request_processed)
|
|
ProcessSniffRequests();
|
|
#else
|
|
sleep(2); /* Incoming msg could disturb edit */
|
|
#endif
|
|
sniff_will_disconnect = 1; /* We expect disconnect msg in 2 secs */
|
|
}
|
|
}
|
|
|
|
|
|
/* ConnectToSniffEmacs
|
|
* Connect to Sniff: returns 1 on error
|
|
*/
|
|
static int
|
|
ConnectToSniffEmacs()
|
|
{
|
|
#ifdef WIN32 /* Windows Version of the Code */
|
|
HANDLE ToSniffEmacs[2], FromSniffEmacs[2];
|
|
SECURITY_ATTRIBUTES sa;
|
|
|
|
sa.nLength = sizeof(sa);
|
|
sa.lpSecurityDescriptor = NULL;
|
|
sa.bInheritHandle = TRUE;
|
|
|
|
if (! CreatePipe(&ToSniffEmacs[0], &ToSniffEmacs[1], &sa, 0))
|
|
return 1;
|
|
if (! CreatePipe(&FromSniffEmacs[0], &FromSniffEmacs[1], &sa, 0))
|
|
return 1;
|
|
|
|
sniffemacs_handle = ExecuteDetachedProgram(SniffEmacs[0], SniffEmacs[0],
|
|
ToSniffEmacs[0], FromSniffEmacs[1]);
|
|
|
|
if (sniffemacs_handle)
|
|
{
|
|
handle_to_sniff = ToSniffEmacs[1];
|
|
handle_from_sniff = FromSniffEmacs[0];
|
|
sniff_connected = 1;
|
|
hBufferMutex = CreateMutex(
|
|
NULL, /* no security attributes */
|
|
FALSE, /* initially not owned */
|
|
"SniffReadBufferMutex"); /* name of mutex */
|
|
if (hBufferMutex == NULL)
|
|
{
|
|
/* Check for error. */
|
|
}
|
|
readthread_handle = (HANDLE)_beginthread(SniffEmacsReadThread, 0, NULL);
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
/* error in spawn() */
|
|
return 1;
|
|
}
|
|
|
|
#else /* UNIX Version of the Code */
|
|
int ToSniffEmacs[2], FromSniffEmacs[2];
|
|
|
|
pipe(ToSniffEmacs);
|
|
pipe(FromSniffEmacs);
|
|
|
|
/* fork */
|
|
if ((sniffemacs_pid=fork()) == 0)
|
|
{
|
|
/* child */
|
|
|
|
/* prepare communication pipes */
|
|
close(ToSniffEmacs[1]);
|
|
close(FromSniffEmacs[0]);
|
|
|
|
dup2(ToSniffEmacs[0],fileno(stdin)); /* write to ToSniffEmacs[1] */
|
|
dup2(FromSniffEmacs[1],fileno(stdout));/* read from FromSniffEmacs[0] */
|
|
|
|
close(ToSniffEmacs[0]);
|
|
close(FromSniffEmacs[1]);
|
|
|
|
/* start sniffemacs */
|
|
execvp (SniffEmacs[0], SniffEmacs);
|
|
{
|
|
/* FILE *out = fdopen(FromSniffEmacs[1], "w"); */
|
|
sleep(1);
|
|
fputs(_(msg_sniff_disconnect), stdout);
|
|
fflush(stdout);
|
|
sleep(3);
|
|
#ifdef FEAT_GUI
|
|
if (gui.in_use)
|
|
gui_exit(1);
|
|
#endif
|
|
exit(1);
|
|
}
|
|
return 1;
|
|
}
|
|
else if (sniffemacs_pid > 0)
|
|
{
|
|
/* parent process */
|
|
close(ToSniffEmacs[0]);
|
|
fd_to_sniff = ToSniffEmacs[1];
|
|
close(FromSniffEmacs[1]);
|
|
fd_from_sniff = FromSniffEmacs[0];
|
|
sniff_connected = 1;
|
|
return 0;
|
|
}
|
|
else /* error in fork() */
|
|
return 1;
|
|
#endif /* UNIX Version of the Code */
|
|
}
|
|
|
|
|
|
/* HandleSniffRequest
|
|
* Handle one request from SNiFF+
|
|
*/
|
|
static void
|
|
HandleSniffRequest(buffer)
|
|
char *buffer;
|
|
{
|
|
char VICommand[MAX_REQUEST_LEN];
|
|
char command;
|
|
char *arguments;
|
|
char *token;
|
|
char *argv[3];
|
|
int argc = 0;
|
|
buf_T *buf;
|
|
|
|
const char *SetTab = "set tabstop=%d";
|
|
const char *SelectBuf = "buf %s";
|
|
const char *DeleteBuf = "bd %s";
|
|
const char *UnloadBuf = "bun %s";
|
|
const char *GotoLine = "%d";
|
|
|
|
command = buffer[0];
|
|
arguments = &buffer[1];
|
|
token = strtok(arguments, sniff_rq_sep);
|
|
while(argc <3)
|
|
{
|
|
if (token)
|
|
{
|
|
argv[argc] = (char*)vim_strsave((char_u *)token);
|
|
token = strtok(0, sniff_rq_sep);
|
|
}
|
|
else
|
|
argv[argc] = strdup("");
|
|
argc++;
|
|
}
|
|
|
|
switch (command)
|
|
{
|
|
case 'o' : /* visit file at char pos */
|
|
case 'O' : /* visit file at line number */
|
|
{
|
|
char *file = argv[0];
|
|
int position = atoi(argv[1]);
|
|
|
|
buf = vi_find_buffer(file);
|
|
setpcmark(); /* insert current pos in jump list [mark.c]*/
|
|
if (!buf)
|
|
vi_open_file(file);
|
|
else if (buf!=curbuf)
|
|
{
|
|
sprintf(VICommand, SelectBuf, file);
|
|
vi_exec_cmd(VICommand);
|
|
}
|
|
if (command == 'o')
|
|
vi_set_cursor_pos((long)position);
|
|
else
|
|
{
|
|
sprintf(VICommand, GotoLine, (int)position);
|
|
vi_exec_cmd(VICommand);
|
|
}
|
|
checkpcmark(); /* [mark.c] */
|
|
#if defined(FEAT_GUI_X11) || defined(FEAT_GUI_W32)
|
|
if (gui.in_use && !gui.in_focus) /* Raise Vim Window */
|
|
{
|
|
# ifdef FEAT_GUI_W32
|
|
SetForegroundWindow(s_hwnd);
|
|
# else
|
|
extern Widget vimShell;
|
|
|
|
XSetInputFocus(gui.dpy, XtWindow(vimShell), RevertToNone,
|
|
CurrentTime);
|
|
XRaiseWindow(gui.dpy, XtWindow(vimShell));
|
|
# endif
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
case 'p' : /* path of file has changed */
|
|
/* when changing from shared to private WS (checkout) */
|
|
{
|
|
char *file = argv[0];
|
|
char *new_path = argv[1];
|
|
|
|
buf = vi_find_buffer(file);
|
|
if (buf && !buf->b_changed) /* delete buffer only if not modified */
|
|
{
|
|
sprintf(VICommand, DeleteBuf, file);
|
|
vi_exec_cmd(VICommand);
|
|
}
|
|
vi_open_file(new_path);
|
|
break;
|
|
}
|
|
case 'w' : /* writability has changed */
|
|
/* Sniff sends request twice,
|
|
* but only the last one is the right one */
|
|
{
|
|
char *file = argv[0];
|
|
int writable = atoi(argv[1]);
|
|
|
|
buf = vi_find_buffer(file);
|
|
if (buf)
|
|
{
|
|
buf->b_p_ro = !writable;
|
|
if (buf != curbuf)
|
|
{
|
|
buf->b_flags |= BF_CHECK_RO + BF_NEVERLOADED;
|
|
if (writable && !buf->b_changed)
|
|
{
|
|
sprintf(VICommand, UnloadBuf, file);
|
|
vi_exec_cmd(VICommand);
|
|
}
|
|
}
|
|
else if (writable && !buf->b_changed)
|
|
{
|
|
vi_exec_cmd("e");
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 'h' : /* highlight info */
|
|
break; /* not implemented */
|
|
|
|
case 't' : /* Set tab width */
|
|
{
|
|
int tab_width = atoi(argv[1]);
|
|
|
|
if (tab_width > 0 && tab_width <= 16)
|
|
{
|
|
sprintf(VICommand, SetTab, tab_width);
|
|
vi_exec_cmd(VICommand);
|
|
}
|
|
break;
|
|
}
|
|
case '|':
|
|
{
|
|
/* change the request separator */
|
|
sniff_rq_sep[0] = arguments[0];
|
|
/* echo the request */
|
|
WriteToSniff(buffer);
|
|
break;
|
|
}
|
|
case 'A' : /* Warning/Info msg */
|
|
vi_msg(arguments);
|
|
if (!strncmp(arguments, "Disconnected", 12)) /* "Disconnected ..." */
|
|
sniff_disconnect(1); /* unexpected disconnection */
|
|
break;
|
|
case 'a' : /* Error msg */
|
|
vi_error_msg(arguments);
|
|
if (!strncmp(arguments, "Cannot connect", 14)) /* "Cannot connect ..." */
|
|
sniff_disconnect(1);
|
|
break;
|
|
|
|
default :
|
|
break;
|
|
}
|
|
while(argc)
|
|
vim_free(argv[--argc]);
|
|
}
|
|
|
|
|
|
#ifndef WIN32
|
|
/* get_request
|
|
* read string from fd up to next newline (excluding the nl),
|
|
* returns length of string
|
|
* 0 if no data available or no complete line
|
|
* <0 on error
|
|
*/
|
|
static int
|
|
get_request(fd, buf, maxlen)
|
|
int fd;
|
|
char *buf;
|
|
int maxlen;
|
|
{
|
|
static char inbuf[1024];
|
|
static int pos = 0, bytes = 0;
|
|
int len;
|
|
#ifdef HAVE_SELECT
|
|
struct timeval tval;
|
|
fd_set rfds;
|
|
|
|
FD_ZERO(&rfds);
|
|
FD_SET(fd, &rfds);
|
|
tval.tv_sec = 0;
|
|
tval.tv_usec = 0;
|
|
#else
|
|
struct pollfd fds;
|
|
|
|
fds.fd = fd;
|
|
fds.events = POLLIN;
|
|
#endif
|
|
|
|
for (len = 0; len < maxlen; len++)
|
|
{
|
|
if (pos >= bytes) /* end of buffer reached? */
|
|
{
|
|
#ifdef HAVE_SELECT
|
|
if (select(fd + 1, &rfds, NULL, NULL, &tval) > 0)
|
|
#else
|
|
if (poll(&fds, 1, 0) > 0)
|
|
#endif
|
|
{
|
|
pos = 0;
|
|
bytes = read(fd, inbuf, sizeof(inbuf));
|
|
if (bytes <= 0)
|
|
return bytes;
|
|
}
|
|
else
|
|
{
|
|
pos = pos-len;
|
|
buf[0] = '\0';
|
|
return 0;
|
|
}
|
|
}
|
|
if ((buf[len] = inbuf[pos++]) =='\n')
|
|
break;
|
|
}
|
|
buf[len] = '\0';
|
|
return len;
|
|
}
|
|
#endif /* WIN32 */
|
|
|
|
|
|
static void
|
|
SendRequest(command, symbol)
|
|
struct sn_cmd *command;
|
|
char *symbol;
|
|
{
|
|
int cmd_type = command->cmd_type;
|
|
static char cmdstr[MAX_REQUEST_LEN];
|
|
static char msgtxt[MAX_REQUEST_LEN];
|
|
char *buffer_name = NULL;
|
|
|
|
if (cmd_type == RQ_CONNECT)
|
|
{
|
|
sniff_connect();
|
|
return;
|
|
}
|
|
if (!sniff_connected && !(cmd_type & SILENT))
|
|
{
|
|
vi_error_msg(_("E278: SNiFF+ not connected"));
|
|
return;
|
|
}
|
|
|
|
if (cmd_type & NEED_FILE)
|
|
{
|
|
if (!curbuf->b_sniff)
|
|
{
|
|
if (!(cmd_type & SILENT))
|
|
vi_error_msg(_("E279: Not a SNiFF+ buffer"));
|
|
return;
|
|
}
|
|
buffer_name = vi_buffer_name();
|
|
if (buffer_name == NULL)
|
|
return;
|
|
if (cmd_type & NEED_SYMBOL)
|
|
{
|
|
if (cmd_type & EMPTY_SYMBOL)
|
|
symbol = " ";
|
|
else if (!symbol && !(symbol = vi_symbol_under_cursor()))
|
|
return; /* error msg already displayed */
|
|
}
|
|
|
|
if (symbol)
|
|
sprintf(cmdstr, "%c%s%s%ld%s%s\n",
|
|
command->cmd_code,
|
|
buffer_name,
|
|
sniff_rq_sep,
|
|
vi_cursor_pos(),
|
|
sniff_rq_sep,
|
|
symbol
|
|
);
|
|
else
|
|
sprintf(cmdstr, "%c%s\n", command->cmd_code, buffer_name);
|
|
}
|
|
else /* simple request */
|
|
{
|
|
cmdstr[0] = command->cmd_code;
|
|
cmdstr[1] = '\n';
|
|
cmdstr[2] = '\0';
|
|
}
|
|
if (command->cmd_msg && !(cmd_type & SILENT))
|
|
{
|
|
if ((cmd_type & NEED_SYMBOL) && !(cmd_type & EMPTY_SYMBOL))
|
|
{
|
|
sprintf(msgtxt, "%s: %s", _(command->cmd_msg), symbol);
|
|
vi_msg(msgtxt);
|
|
}
|
|
else
|
|
vi_msg(_(command->cmd_msg));
|
|
}
|
|
WriteToSniff(cmdstr);
|
|
if (cmd_type & DISCONNECT)
|
|
sniff_disconnect(0);
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
WriteToSniff(str)
|
|
char *str;
|
|
{
|
|
int bytes;
|
|
#ifdef WIN32
|
|
if (! WriteFile(handle_to_sniff, str, strlen(str), &bytes, NULL))
|
|
{
|
|
DWORD err=GetLastError();
|
|
bytes = -1;
|
|
}
|
|
#else
|
|
bytes = write(fd_to_sniff, str, strlen(str));
|
|
#endif
|
|
if (bytes<0)
|
|
{
|
|
vi_msg(_("Sniff: Error during write. Disconnected"));
|
|
sniff_disconnect(1);
|
|
}
|
|
}
|
|
|
|
/*-------- vim helping functions --------------------------------*/
|
|
|
|
static void
|
|
vi_msg(str)
|
|
char *str;
|
|
{
|
|
if (str != NULL && *str != NUL)
|
|
MSG((char_u *)str);
|
|
}
|
|
|
|
static void
|
|
vi_error_msg(str)
|
|
char *str;
|
|
{
|
|
if (str != NULL && *str != NUL)
|
|
EMSG((char_u *)str);
|
|
}
|
|
|
|
static void
|
|
vi_open_file(fname)
|
|
char *fname;
|
|
{
|
|
++no_wait_return;
|
|
do_ecmd(0, (char_u *)fname, NULL, NULL, ECMD_ONE, ECMD_HIDE+ECMD_OLDBUF);
|
|
curbuf->b_sniff = TRUE;
|
|
--no_wait_return; /* [ex_docmd.c] */
|
|
}
|
|
|
|
static buf_T *
|
|
vi_find_buffer(fname)
|
|
char *fname;
|
|
{ /* derived from buflist_findname() [buffer.c] */
|
|
buf_T *buf;
|
|
|
|
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
|
|
if (buf->b_sfname != NULL && fnamecmp(fname, buf->b_sfname) == 0)
|
|
return (buf);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static char *
|
|
vi_symbol_under_cursor()
|
|
{
|
|
int len;
|
|
char *symbolp;
|
|
char *p;
|
|
static char sniff_symbol[256];
|
|
|
|
len = find_ident_under_cursor((char_u **)&symbolp, FIND_IDENT);
|
|
/* [normal.c] */
|
|
if (len <= 0)
|
|
return NULL;
|
|
for (p=sniff_symbol; len; len--)
|
|
*p++ = *symbolp++;
|
|
*p = '\0';
|
|
return sniff_symbol;
|
|
}
|
|
|
|
|
|
static char *
|
|
vi_buffer_name()
|
|
{
|
|
return (char *)curbuf->b_sfname;
|
|
}
|
|
|
|
static void
|
|
vi_exec_cmd(vicmd)
|
|
char *vicmd;
|
|
{
|
|
do_cmdline_cmd((char_u *)vicmd); /* [ex_docmd.c] */
|
|
}
|
|
|
|
/*
|
|
* Set cursor on character position
|
|
* derived from cursor_pos_info() [buffer.c]
|
|
*/
|
|
static void
|
|
vi_set_cursor_pos(char_pos)
|
|
long char_pos;
|
|
{
|
|
linenr_T lnum;
|
|
long char_count = 1; /* first position = 1 */
|
|
int line_size;
|
|
int eol_size;
|
|
|
|
if (char_pos == 0)
|
|
{
|
|
char_pos = 1;
|
|
}
|
|
if (get_fileformat(curbuf) == EOL_DOS)
|
|
eol_size = 2;
|
|
else
|
|
eol_size = 1;
|
|
for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
|
|
{
|
|
line_size = STRLEN(ml_get(lnum)) + eol_size;
|
|
if (char_count+line_size > char_pos) break;
|
|
char_count += line_size;
|
|
}
|
|
curwin->w_cursor.lnum = lnum;
|
|
curwin->w_cursor.col = char_pos - char_count;
|
|
}
|
|
|
|
static long
|
|
vi_cursor_pos()
|
|
{
|
|
linenr_T lnum;
|
|
long char_count=1; /* sniff starts with pos 1 */
|
|
int line_size;
|
|
int eol_size;
|
|
|
|
if (curbuf->b_p_tx)
|
|
eol_size = 2;
|
|
else
|
|
eol_size = 1;
|
|
for (lnum = 1; lnum < curwin->w_cursor.lnum; ++lnum)
|
|
{
|
|
line_size = STRLEN(ml_get(lnum)) + eol_size;
|
|
char_count += line_size;
|
|
}
|
|
return char_count + curwin->w_cursor.col;
|
|
}
|