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Small adjustments

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topjohnwu
2018-11-26 03:26:45 -05:00
parent 731455f164
commit 29457a1d28
2 changed files with 10 additions and 8 deletions
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13
native/jni/utils/misc.cpp
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@@ -184,9 +184,9 @@ int __fsetxattr(int fd, const char *name, const void *value, size_t size, int fl
fd == nullptr -> Ignore output
*fd < 0 -> Open pipe and set *fd to the read end
*fd >= 0 -> STDOUT (or STDERR) will be redirected to *fd
*cb -> A callback function which calls after forking
*pre_exec -> A callback function called after forking, before execvp
*/
int exec_array(bool err, int *fd, void (*cb)(void), const char **argv) {
int exec_array(bool err, int *fd, void (*pre_exec)(void), const char **argv) {
int pipefd[2], outfd = -1;
if (fd) {
@@ -209,15 +209,16 @@ int exec_array(bool err, int *fd, void (*cb)(void), const char **argv) {
return pid;
}
if (fd) {
if (outfd >= 0) {
xdup2(outfd, STDOUT_FILENO);
if (err)
xdup2(outfd, STDERR_FILENO);
close(outfd);
}
// Setup environment
if (cb)
cb();
// Call the pre-exec callback
if (pre_exec)
pre_exec();
execvp(argv[0], (char **) argv);
PLOGE("execvp %s", argv[0]);