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Expose flags for process execution

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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.

PR #2827 <https://github.com/Genymobile/scrcpy/pull/2827>
This commit is contained in:
Romain Vimont
2021-11-19 22:42:49 +01:00
parent b9b8b6aab8
commit f801d8b312
5 changed files with 48 additions and 14 deletions
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15
app/src/sys/unix/process.c
View File

@@ -11,8 +11,11 @@
#include "util/log.h"
enum sc_process_result
sc_process_execute_p(const char *const argv[], sc_pid *pid,
sc_process_execute_p(const char *const argv[], sc_pid *pid, unsigned flags,
int *pin, int *pout, int *perr) {
bool inherit_stdout = !pout && !(flags & SC_PROCESS_NO_STDOUT);
bool inherit_stderr = !perr && !(flags & SC_PROCESS_NO_STDERR);
int in[2];
int out[2];
int err[2];
@@ -90,20 +93,30 @@ sc_process_execute_p(const char *const argv[], sc_pid *pid,
}
close(in[1]);
}
// Do not close stdin in the child process, this makes adb fail on Linux
if (pout) {
if (out[1] != STDOUT_FILENO) {
dup2(out[1], STDOUT_FILENO);
close(out[1]);
}
close(out[0]);
} else if (!inherit_stdout) {
// Close stdout in the child process
close(STDOUT_FILENO);
}
if (perr) {
if (err[1] != STDERR_FILENO) {
dup2(err[1], STDERR_FILENO);
close(err[1]);
}
close(err[0]);
} else if (!inherit_stderr) {
// Close stderr in the child process
close(STDERR_FILENO);
}
close(internal[0]);
enum sc_process_result err;
if (fcntl(internal[1], F_SETFD, FD_CLOEXEC) == 0) {