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/*
* Copyright (c) 2022 Egor Tensin <Egor.Tensin@gmail.com>
* This file is part of the "cimple" project.
* For details, see https://github.com/egor-tensin/cimple.
* Distributed under the MIT License.
*/
#include "worker.h"
#include "ci.h"
#include "command.h"
#include "compiler.h"
#include "const.h"
#include "git.h"
#include "log.h"
#include "msg.h"
#include "process.h"
#include "run_queue.h"
#include "signal.h"
#include <stdlib.h>
struct worker {
int dummy;
};
int worker_create(struct worker **_worker)
{
int ret = 0;
ret = signal_handle_stop_signals();
if (ret < 0)
return ret;
struct worker *worker = malloc(sizeof(struct worker));
if (!worker) {
log_errno("malloc");
return -1;
}
ret = libgit_init();
if (ret < 0)
goto free;
*_worker = worker;
return ret;
free:
free(worker);
return ret;
}
void worker_destroy(struct worker *worker)
{
log("Shutting down\n");
libgit_shutdown();
free(worker);
}
static int worker_send_to_server(const struct settings *settings, const struct msg *request,
struct msg **response)
{
return msg_connect_and_communicate(settings->host, settings->port, request, response);
}
static int worker_send_to_server_argv(const struct settings *settings, const char **argv,
struct msg **response)
{
struct msg *msg = NULL;
int ret = 0;
ret = msg_from_argv(&msg, argv);
if (ret < 0)
return ret;
ret = worker_send_to_server(settings, msg, response);
msg_free(msg);
return ret;
}
static int worker_send_new_worker(const struct settings *settings, struct msg **task)
{
static const char *argv[] = {CMD_NEW_WORKER, NULL};
return worker_send_to_server_argv(settings, argv, task);
}
static int msg_run_handler(const struct msg *request, struct msg **response, UNUSED void *ctx)
{
struct run *run = NULL;
struct proc_output result;
int ret = 0;
ret = run_from_msg(&run, request);
if (ret < 0)
return ret;
proc_output_init(&result);
ret = ci_run_git_repo(run_get_url(run), run_get_rev(run), &result);
if (ret < 0) {
log_err("Run failed with an error\n");
goto free_output;
}
proc_output_dump(&result);
static const char *argv[] = {CMD_COMPLETE, NULL};
ret = msg_from_argv(response, argv);
if (ret < 0)
goto free_output;
free_output:
proc_output_free(&result);
run_destroy(run);
return ret;
}
static struct cmd_desc commands[] = {
{CMD_RUN, msg_run_handler},
};
static const size_t numof_commands = sizeof(commands) / sizeof(commands[0]);
int worker_main(UNUSED struct worker *worker, const struct settings *settings)
{
struct msg *task = NULL;
struct cmd_dispatcher *dispatcher = NULL;
int ret = 0;
ret = cmd_dispatcher_create(&dispatcher, commands, numof_commands, NULL);
if (ret < 0)
return ret;
log("Waiting for a new command\n");
ret = worker_send_new_worker(settings, &task);
if (ret < 0) {
if ((errno == EINTR || errno == EINVAL) && global_stop_flag)
ret = 0;
goto dispatcher_destroy;
}
while (!global_stop_flag) {
struct msg *result = NULL;
ret = cmd_dispatcher_handle(dispatcher, task, &result);
msg_free(task);
if (ret < 0)
goto dispatcher_destroy;
ret = worker_send_to_server(settings, result, &task);
msg_free(result);
if (ret < 0) {
if ((errno == EINTR || errno == EINVAL) && global_stop_flag)
ret = 0;
goto dispatcher_destroy;
}
}
dispatcher_destroy:
cmd_dispatcher_destroy(dispatcher);
return ret;
}
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