mirror of
https://github.com/mpv-player/mpv
synced 2024-12-14 19:05:33 +00:00
87d8c59258
child process on uninit git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4527 b3059339-0415-0410-9bf9-f77b7e298cf2
141 lines
2.9 KiB
C
141 lines
2.9 KiB
C
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#include "../config.h"
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#ifdef HAVE_LIRC
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#include <lirc/lirc_client.h>
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#include <errno.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <stdlib.h>
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#include "../mp_msg.h"
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#include "../help_mp.h"
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static struct lirc_config *lirc_config;
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extern char *lirc_configfile;
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static int child_pid=0;
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static void
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mp_input_lirc_process_quit(int sig);
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static void
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mp_input_lirc_process(int mp_fd);
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int
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mp_input_lirc_init(void) {
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int lirc_sock;
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int p[2];
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mp_msg(MSGT_LIRC,MSGL_INFO,MSGTR_SettingUpLIRC);
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if((lirc_sock=lirc_init("mplayer",1))==-1){
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mp_msg(MSGT_LIRC,MSGL_ERR,MSGTR_LIRCopenfailed MSGTR_LIRCdisabled);
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return -1;
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}
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if(lirc_readconfig( lirc_configfile,&lirc_config,NULL )!=0 ){
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mp_msg(MSGT_LIRC,MSGL_ERR,MSGTR_LIRCcfgerr MSGTR_LIRCdisabled,
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lirc_configfile == NULL ? "~/.lircrc" : lirc_configfile);
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lirc_deinit();
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return -1;
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}
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if(pipe(p) != 0) {
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mp_msg(MSGT_LIRC,MSGL_ERR,"Can't create lirc pipe : %s\n",strerror(errno));
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lirc_deinit();
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}
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child_pid = fork();
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if(child_pid < 0) {
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mp_msg(MSGT_LIRC,MSGL_ERR,"Can't fork lirc subprocess : %s\n",strerror(errno));
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lirc_deinit();
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close(p[0]);
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close(p[1]);
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return -1;
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} else if(child_pid == 0) {// setup child process
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close(p[0]);
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// put some signal handlers
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signal(SIGINT,mp_input_lirc_process_quit);
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signal(SIGHUP,mp_input_lirc_process_quit);
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signal(SIGQUIT,mp_input_lirc_process_quit);
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// start the process
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mp_input_lirc_process(p[1]);
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}
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// free unuseful ressources in parent process
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lirc_freeconfig(lirc_config);
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close(p[1]);
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mp_msg(MSGT_LIRC,MSGL_V,"NEW LIRC init was successful.\n");
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return p[0];
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}
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static void
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mp_input_lirc_process_quit(int sig) {
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lirc_freeconfig(lirc_config);
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lirc_deinit();
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exit(sig > 0 ? 0 : -1);
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}
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static void
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mp_input_lirc_process(int mp_fd) {
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char *cmd,*code;
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int ret;
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while(lirc_nextcode(&code)==0) {
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if(code==NULL)
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continue;
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while((ret=lirc_code2char(lirc_config,code,&cmd))==0 && cmd!=NULL) {
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int len = strlen(cmd)+1;
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char buf[len];
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int w=0;
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strcpy(buf,cmd);
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buf[len-1] = '\n';
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while(w < len) {
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int r = write(mp_fd,buf,len-w);
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if(r < 0) {
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if(errno == EINTR)
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continue;
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mp_msg(MSGT_LIRC,MSGL_V,"LIRC subprocess can't write in input pipe : %s\n",
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strerror(errno));
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mp_input_lirc_process_quit(-1);
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}
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w += r;
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}
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}
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free(code);
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if(ret==-1)
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break;
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}
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mp_input_lirc_process_quit(-1);
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}
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void
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mp_input_lirc_uninit(void) {
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if(child_pid <= 0)
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return;
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if( kill(child_pid,SIGQUIT) != 0) {
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mp_msg(MSGT_LIRC,MSGL_V,"LIRC can't kill subprocess %d : %s\n",
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child_pid,strerror(errno));
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return;
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}
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if(waitpid(child_pid,NULL,0) < 0)
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mp_msg(MSGT_LIRC,MSGL_V,"LIRC error while waiting subprocess %d : %s\n",
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child_pid,strerror(errno));
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}
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#endif
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