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#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <poll.h>
#include "common/msg.h"
#include "osdep/io.h"
#include "input.h"
#include "cmd_parse.h"
static void read_pipe_thread(struct mp_input_src *src, void *param)
{
void *tmp = talloc_new(NULL);
char *filename = talloc_strdup(tmp, param); // param deallocates after init
int wakeup_fd = mp_input_src_get_wakeup_fd(src);
int fd = -1;
struct mp_log *log = src->log;
int mode = O_RDONLY;
// Use RDWR for FIFOs to ensure they stay open over multiple accesses.
struct stat st;
if (stat(filename, &st) == 0 && S_ISFIFO(st.st_mode))
mode = O_RDWR;
fd = open(filename, mode);
if (fd < 0) {
mp_err(log, "Can't open %s.\n", filename);
goto done;
}
mp_input_src_init_done(src);
while (1) {
struct pollfd fds[2] = {
{ .fd = fd, .events = POLLIN },
{ .fd = wakeup_fd, .events = POLLIN },
};
poll(fds, 2, -1);
if (!(fds[0].revents & POLLIN))
break;
char buffer[128];
int r = read(fd, buffer, sizeof(buffer));
if (r <= 0)
break;
mp_input_src_feed_cmd_text(src, buffer, r);
}
done:
close(fd);
talloc_free(tmp);
}
void mp_input_pipe_add(struct input_ctx *ictx, const char *filename)
{
mp_input_add_thread_src(ictx, (void *)filename, read_pipe_thread);
}
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