scrcpy/app/src/util/process.c
Romain Vimont 01d6d8c41f Expose flags for process execution
Let the caller decide if stdout and stderr must be inherited on process
creation, i.e. if stdout and stderr of the child process should be
printed in the scrcpy console.

This allows to get output and errors for specific adb commands depending
on the context.
2021-11-26 09:41:11 +01:00

103 lines
2.7 KiB
C

#include "process.h"
#include <assert.h>
#include <libgen.h>
#include "log.h"
enum sc_process_result
sc_process_execute(const char *const argv[], sc_pid *pid, unsigned flags) {
return sc_process_execute_p(argv, pid, flags, NULL, NULL, NULL);
}
ssize_t
sc_pipe_read_all(sc_pipe pipe, char *data, size_t len) {
size_t copied = 0;
while (len > 0) {
ssize_t r = sc_pipe_read(pipe, data, len);
if (r <= 0) {
return copied ? (ssize_t) copied : r;
}
len -= r;
data += r;
copied += r;
}
return copied;
}
static int
run_observer(void *data) {
struct sc_process_observer *observer = data;
sc_process_wait(observer->pid, false); // ignore exit code
sc_mutex_lock(&observer->mutex);
observer->terminated = true;
sc_cond_signal(&observer->cond_terminated);
sc_mutex_unlock(&observer->mutex);
if (observer->listener) {
observer->listener->on_terminated(observer->listener_userdata);
}
return 0;
}
bool
sc_process_observer_init(struct sc_process_observer *observer, sc_pid pid,
const struct sc_process_listener *listener,
void *listener_userdata) {
// Either no listener, or on_terminated() is defined
assert(!listener || listener->on_terminated);
bool ok = sc_mutex_init(&observer->mutex);
if (!ok) {
return false;
}
ok = sc_cond_init(&observer->cond_terminated);
if (!ok) {
sc_mutex_destroy(&observer->mutex);
return false;
}
observer->pid = pid;
observer->listener = listener;
observer->listener_userdata = listener_userdata;
observer->terminated = false;
ok = sc_thread_create(&observer->thread, run_observer, "process_observer",
observer);
if (!ok) {
sc_cond_destroy(&observer->cond_terminated);
sc_mutex_destroy(&observer->mutex);
return false;
}
return true;
}
bool
sc_process_observer_timedwait(struct sc_process_observer *observer,
sc_tick deadline) {
sc_mutex_lock(&observer->mutex);
bool timed_out = false;
while (!observer->terminated && !timed_out) {
timed_out = !sc_cond_timedwait(&observer->cond_terminated,
&observer->mutex, deadline);
}
bool terminated = observer->terminated;
sc_mutex_unlock(&observer->mutex);
return terminated;
}
void
sc_process_observer_join(struct sc_process_observer *observer) {
sc_thread_join(&observer->thread, NULL);
}
void
sc_process_observer_destroy(struct sc_process_observer *observer) {
sc_cond_destroy(&observer->cond_terminated);
sc_mutex_destroy(&observer->mutex);
}