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add sem_create(), wrappign sem_init() for linux and sem_open() for macOS

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This commit is contained in:
Ryo Nakamura
2023-03-15 23:54:57 +09:00
parent 3902fb584a
commit ae4b848ba0
3 changed files with 70 additions and 33 deletions
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26
src/mscp.c
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@@ -204,24 +204,9 @@ static int validate_and_set_defaut_params(struct mscp_opts *o)
return 0;
}
static int random_string(char *buf, size_t size)
{
char chars[] = "abcdefhijklmnopkwxyz1234567890";
int n, x;
for (n = 0; n < size - 1; n++) {
x = get_random(sizeof(chars) - 1);
buf[n] = chars[x];
}
buf[size - 1] = '\0';
return 0;
}
struct mscp *mscp_init(const char *remote_host, int direction,
struct mscp_opts *o, struct mscp_ssh_opts *s)
{
char sem_name[PSEMNAMLEN] = "mscp-";
struct mscp *m;
int n;
@@ -253,12 +238,8 @@ struct mscp *mscp_init(const char *remote_host, int direction,
INIT_LIST_HEAD(&m->path_list);
chunk_pool_init(&m->cp);
n = strlen(sem_name);
if (random_string(sem_name + n, sizeof(sem_name) - n - 1) < 0)
goto free_out;
if ((m->sem = sem_open(sem_name, O_CREAT, 600, o->max_startups)) == SEM_FAILED) {
mscp_set_error("sem_open: %s", strerrno());
if ((m->sem = sem_create(o->max_startups)) == NULL) {
mscp_set_error("sem_create: %s", strerrno());
goto free_out;
}
@@ -708,7 +689,8 @@ void mscp_free(struct mscp *m)
free(m->remote);
if (m->cores)
free(m->cores);
sem_close(m->sem);
sem_release(m->sem);
free(m);
}