void Process::async_read() {
if(data.id==0)
return;
if(stdout_fd) {
stdout_thread=std::thread([this](){
DWORD n;
std::unique_ptr<char[]> buffer(new char[buffer_size]);
for (;;) {
BOOL bSuccess = ReadFile(*stdout_fd, static_cast<CHAR*>(buffer.get()), static_cast<DWORD>(buffer_size), &n, nullptr);
if(!bSuccess || n == 0)
break;
read_stdout(buffer.get(), static_cast<size_t>(n));
}
});
}
if(stderr_fd) {
stderr_thread=std::thread([this](){
DWORD n;
std::unique_ptr<char[]> buffer(new char[buffer_size]);
for (;;) {
BOOL bSuccess = ReadFile(*stderr_fd, static_cast<CHAR*>(buffer.get()), static_cast<DWORD>(buffer_size), &n, nullptr);
if(!bSuccess || n == 0)
break;
read_stderr(buffer.get(), static_cast<size_t>(n));
}
});
}
}
void Process::async_read() {
if(data.id<=0)
return;
if(stdout_fd) {
stdout_thread=std::thread([this](){
auto buffer = std::unique_ptr<char[]>( new char[buffer_size] );
ssize_t n;
while ((n=read(*stdout_fd, buffer.get(), buffer_size)) > 0)
read_stdout(buffer.get(), static_cast<size_t>(n));
});
}
if(stderr_fd) {
stderr_thread=std::thread([this](){
auto buffer = std::unique_ptr<char[]>( new char[buffer_size] );
ssize_t n;
while ((n=read(*stderr_fd, buffer.get(), buffer_size)) > 0)
read_stderr(buffer.get(), static_cast<size_t>(n));
});
}
}
void Process::async_read() {
if(data.id<=0)
return;
if(stdout_fd) {
stdout_thread=std::thread([this](){
char buffer[buffer_size];
ssize_t n;
while ((n=read(*stdout_fd, buffer, buffer_size)) > 0)
read_stdout(buffer, static_cast<size_t>(n));
});
}
if(stderr_fd) {
stderr_thread=std::thread([this](){
char buffer[buffer_size];
ssize_t n;
while ((n=read(*stderr_fd, buffer, buffer_size)) > 0)
read_stderr(buffer, static_cast<size_t>(n));
});
}
}
/**
* @brief thread routine that handle a forked process
* @param arg the ::child_node for the forked child
* @return 0 on success, -1 on error.
*/
void *handle_child(void *arg) {
child_node *c;
int status;
pid_t wait_res;
void *ret;
int stdout_error;
#ifndef NDEBUG
char *name;
#endif
c = (child_node *)arg;
ret = (void *) -1;
stdout_error = 0;
wait_res = 0;
#ifndef NDEBUG
print( DEBUG, "new child started. (name=%s, pid=%d)", c->handler->name, c->pid );
#endif
if(c->handler->have_stdout) {
if((stdout_error = read_stdout(c))) {
print(ERROR, "cannot read process stdout");
}
}
stdout_error &= read_stderr(c);
if((wait_res = waitpid(c->pid, &status, 0)) != c->pid) {
print(ERROR, "waitpid: %s", strerror(errno));
} else if(on_child_done(c, status)) {
print(ERROR, "cannot notify child termination.");
} else if(!stdout_error)
ret = 0;
#ifdef NDEBUG
send_to_graveyard(c->tid);
#else
if(asprintf(&name, "%s(name=%s, pid=%d)", __func__, c->handler->name, c->pid)<0) {
print( ERROR, "asprintf: %s", strerror(errno) );
name=NULL;
}
_send_to_graveyard(c->tid, name);
#endif
pthread_mutex_lock(&(c->conn->children.control.mutex));
list_del(&(c->conn->children.list), (node *)c);
pthread_mutex_unlock(&(c->conn->children.control.mutex));
pthread_cond_broadcast(&(c->conn->children.control.cond));
if(wait_res!=c->pid)
kill(c->pid, 9); // SIGKILL, process didn't returned as expected
if(c->handler->have_stdout)
close(c->stdout_fd);
if(c->handler->have_stdin)
close(c->stdin_fd);
close(c->stderr_fd);
free(c);
return ret;
}
