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#include <errno.h>
#include <limits.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include "build.h"
#include "evanix.h"
#include "jobs.h"
#include "queue.h"
#include "util.h"
static int build(struct queue *queue);
void *build_thread_entry(void *build_thread)
{
struct build_thread *bt = build_thread;
int ret = 0;
while (true) {
ret = sem_wait(&bt->queue->sem);
if (ret < 0) {
print_err("%s", strerror(errno));
goto out;
}
if (queue_isempty(&bt->queue->jobs)) {
if (bt->queue->state == Q_ITS_OVER)
goto out;
else if (bt->queue->state == Q_SEM_WAIT)
continue;
}
ret = build(bt->queue);
if (ret < 0)
goto out;
}
out:
pthread_exit(NULL);
}
static int build(struct queue *queue)
{
struct job *job;
char *args[5];
size_t argindex;
int ret;
char out_link[NAME_MAX] = "result";
ret = queue_pop(queue, &job);
if (ret == -ESRCH)
return EAGAIN;
if (ret < 0)
return ret;
if (job->nix_attr_name) {
ret = snprintf(out_link, sizeof(out_link), "result-%s",
job->nix_attr_name);
if (ret < 0 || (size_t)ret > sizeof(out_link)) {
ret = -ENAMETOOLONG;
print_err("%s", strerror(-ret));
goto out_free_job;
}
}
argindex = 0;
args[argindex++] = "nix-build";
args[argindex++] = "--out-link";
args[argindex++] = out_link;
args[argindex++] = job->drv_path;
args[argindex++] = NULL;
if (evanix_opts.isdryrun) {
if (evanix_opts.solver_report)
printf("🛠️ ");
for (size_t i = 0; i < argindex - 1; i++)
printf("%s%c", args[i],
(i + 2 == argindex) ? '\n' : ' ');
} else {
run("nix-build", args);
}
out_free_job:
job_free(job);
return ret;
}
int build_thread_new(struct build_thread **build_thread, struct queue *q)
{
struct build_thread *bt = NULL;
bt = malloc(sizeof(*bt));
if (bt == NULL) {
print_err("%s", strerror(errno));
return -errno;
}
bt->queue = q;
*build_thread = bt;
return 0;
}
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