gui_common.c

   1 #include "para.h"
   2 #include "string.h"
   3 #include "fd.h"
   4
   5 extern const char *status_item_list[NUM_STAT_ITEMS];
   6
   7 int para_open_audiod_pipe(char *cmd)
   8 {
   9         int fds[3] = {0, 1, 0};
  10         pid_t pid;
  11         int ret = para_exec_cmdline_pid(&pid, cmd, fds);
  12         if (ret < 0)
  13                 return ret;
  14         ret = mark_fd_nonblock(fds[1]);
  15         if (ret > 0)
  16                 return fds[1];
  17         close(fds[1]);
  18         return ret;
  19 }
  20
  21 int read_audiod_pipe(int fd, line_handler_t *line_handler)
  22 {
  23         static char buf[4096];
  24         const ssize_t bufsize = sizeof(buf) - 1;
  25         static ssize_t loaded;
  26         ssize_t ret;
  27
  28         if (loaded >= bufsize)
  29                 loaded = 0;
  30         ret = read(fd, buf + loaded, bufsize - loaded);
  31         if (ret > 0) {
  32                 loaded += ret;
  33                 buf[loaded] = '\0';
  34                 loaded = for_each_line(buf, loaded, line_handler, NULL);
  35         }
  36         return ret;
  37 }