--- /dev/null
+/*****************************************************************************
+ * externrun.c: Run extern programs (vlc:run:"theprogram":delayinseconds)
+ *****************************************************************************
+ * Copyright (C) 2004 VideoLAN
+ *
+ * Authors: Sylvain Cadilhac <sylv@via.ecp.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <stdlib.h> /* malloc(), free() */
+
+#include <vlc/vlc.h>
+#include <vlc/intf.h>
+#include <string.h>
+
+#if defined( WIN32 )
+#include <windows.h>
+#endif
+
+
+/*****************************************************************************
+ * run_command_t: a command and its delay
+ *****************************************************************************/
+struct run_command_t
+{
+ int i_delay;
+ char *psz_torun;
+ struct run_command_t *p_next;
+};
+typedef struct run_command_t run_command_t;
+
+/*****************************************************************************
+ * intf_sys_t: description and status of FB interface
+ *****************************************************************************/
+struct intf_sys_t
+{
+ vlc_mutex_t change_lock;
+ mtime_t next_check;
+ run_command_t *p_first_command;
+ run_command_t *p_last_command;
+};
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int Open ( vlc_object_t * );
+static void Close ( vlc_object_t * );
+static void Run ( intf_thread_t * );
+static int AddRunCommand( vlc_object_t *, char const *,
+ vlc_value_t, vlc_value_t, void * );
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+vlc_module_begin();
+ set_category( CAT_INTERFACE );
+ set_description( _("Execution of extern programs interface function") );
+ set_capability( "interface", 0 );
+ set_callbacks( Open, Close );
+vlc_module_end();
+
+/*****************************************************************************
+ * Open: initialize interface
+ *****************************************************************************/
+static int Open( vlc_object_t *p_this )
+{
+ intf_thread_t *p_intf = (intf_thread_t *)p_this;
+
+ /* Search for the Playlist object */
+ playlist_t *p_playlist;
+ p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
+ if( p_playlist == NULL )
+ {
+ msg_Err( p_intf, "we are not attached to a playlist" );
+ return 1;
+ }
+
+ /* Allocate instance and initialize some members */
+ p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
+ if( p_intf->p_sys == NULL )
+ {
+ msg_Err( p_intf, "out of memory" );
+ return 1;
+ }
+ vlc_mutex_init( p_intf, &p_intf->p_sys->change_lock );
+
+ var_Create( p_playlist, "run-program-command", VLC_VAR_STRING );
+
+ p_intf->p_sys->p_first_command = NULL;
+ p_intf->p_sys->p_last_command = NULL;
+ p_intf->pf_run = Run;
+ var_AddCallback( p_playlist, "run-program-command", AddRunCommand, p_intf );
+ vlc_object_release( p_playlist );
+
+ return 0;
+}
+
+/*****************************************************************************
+ * Close: destroy interface
+ *****************************************************************************/
+static void Close( vlc_object_t *p_this )
+{
+ intf_thread_t *p_intf = (intf_thread_t *)p_this;
+
+ playlist_t *p_playlist;
+ p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
+ if( p_playlist == NULL )
+ {
+ msg_Err( p_intf, "we are not attached to a playlist" );
+ return;
+ }
+ var_Destroy( p_playlist, "run-program-command" );
+ vlc_object_release( p_playlist );
+
+ run_command_t *p_command = p_intf->p_sys->p_first_command;
+ run_command_t *p_next;
+
+ while( p_command )
+ {
+ p_next = p_command->p_next;
+ free( p_command->psz_torun );
+ free( p_command );
+ p_command = p_next;
+ }
+
+ /* Destroy structure */
+ free( p_intf->p_sys );
+}
+
+/*****************************************************************************
+ * Run: main loop
+ *****************************************************************************/
+static void Run( intf_thread_t *p_intf )
+{
+ p_intf->p_sys->next_check = mdate() + 1000000;
+ run_command_t *p_command;
+ run_command_t *p_previous;
+
+ while( !p_intf->b_die )
+ {
+ vlc_mutex_lock( &p_intf->p_sys->change_lock );
+ p_command = p_intf->p_sys->p_first_command;
+ p_previous = NULL;
+ while( p_command )
+ {
+ if( p_command->i_delay > 0 )
+ {
+ p_command->i_delay--;
+ p_previous = p_command;
+ p_command = p_previous->p_next;
+ }
+ else
+ {
+ msg_Info( p_intf, "running %s", p_command->psz_torun );
+#if defined( WIN32 )
+
+ STARTUPINFO si;
+ PROCESS_INFORMATION pi;
+ ZeroMemory( &si, sizeof(si) );
+ si.cb = sizeof(si);
+ ZeroMemory( &pi, sizeof(pi) );
+ if( !CreateProcess( NULL, p_command->psz_torun, NULL, NULL,
+ FALSE, 0, NULL, NULL, &si, &pi ) )
+ {
+ msg_Err( p_intf, "can't run \"%s\"", p_command->psz_torun );
+ }
+#else
+ if ( fork() )
+ {
+ execl( p_command->psz_torun, NULL, (char *)NULL );
+ }
+#endif
+ if( p_previous )
+ {
+ p_previous->p_next = p_command->p_next;
+ free( p_command->psz_torun );
+ free( p_command );
+ p_command = p_previous->p_next;
+ }
+ else
+ {
+ p_intf->p_sys->p_first_command = p_command->p_next;
+ free( p_command->psz_torun );
+ free( p_command );
+ if ( p_intf->p_sys->p_last_command == p_command )
+ {
+ p_intf->p_sys->p_last_command = p_command->p_next;
+ }
+ p_command = p_intf->p_sys->p_first_command;
+ }
+ }
+ }
+ vlc_mutex_unlock( &p_intf->p_sys->change_lock );
+ mwait( p_intf->p_sys->next_check );
+ p_intf->p_sys->next_check += 1000000;
+ }
+ return VLC_SUCCESS;
+}
+
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static int AddRunCommand( vlc_object_t *p_this, char const *psz_var,
+ vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+ intf_thread_t *p_intf = (intf_thread_t *)p_data;
+
+
+ char *psz_command = NULL;
+ int i_delay = 0;
+ char *psz_delay = strrchr( newval.psz_string, ':' );
+ if ( psz_delay )
+ {
+ char *psz_err;
+ i_delay = ( int )strtol( psz_delay + 1, &psz_err, 10 );
+ if ( *psz_err == 0 )
+ {
+ psz_command = malloc( psz_delay - newval.psz_string );
+ if ( psz_command == NULL )
+ {
+ msg_Err( p_intf, "out of memory: can't add run command" );
+ return VLC_EGENERIC;
+ }
+ strncpy( psz_command, newval.psz_string, psz_delay - newval.psz_string );
+ psz_command[ psz_delay - newval.psz_string ] = '\0';
+ }
+ }
+ if ( !psz_command )
+ {
+ psz_command = malloc( strlen( newval.psz_string ) + 1 );
+ strcpy( psz_command, newval.psz_string );
+ }
+
+ run_command_t *p_command = malloc( sizeof( run_command_t ) );
+ if ( p_command == NULL )
+ {
+ msg_Err( p_intf, "out of memory: can't add run command" );
+ return VLC_EGENERIC;
+ }
+ p_command->i_delay = i_delay;
+ p_command->p_next = NULL;
+ p_command->psz_torun = psz_command;
+
+ msg_Info( p_intf, "will run %s in %d seconds", psz_command, i_delay );
+
+
+ vlc_mutex_lock( &p_intf->p_sys->change_lock );
+ if ( p_intf->p_sys->p_last_command )
+ {
+ p_intf->p_sys->p_last_command->p_next = p_command;
+ p_intf->p_sys->p_last_command = p_command;
+ }
+ else
+ {
+ p_intf->p_sys->p_last_command = p_command;
+ p_intf->p_sys->p_first_command = p_command;
+ }
+ vlc_mutex_unlock( &p_intf->p_sys->change_lock );
+
+ return VLC_SUCCESS;
+}
+
+
projects / vlc / commitdiff