static struct fpm_child_s *fpm_resources_prepare(struct fpm_worker_pool_s *wp) /* {{{ */
{
struct fpm_child_s *c;
c = fpm_child_alloc();
if (!c) {
zlog(ZLOG_ERROR, "[pool %s] malloc failed", wp->config->name);
return 0;
}
c->wp = wp;
c->fd_stdout = -1; c->fd_stderr = -1;
if (0 > fpm_stdio_prepare_pipes(c)) {
fpm_child_free(c);
return 0;
}
if (0 > fpm_scoreboard_proc_alloc(wp->scoreboard, &c->scoreboard_i)) {
fpm_stdio_discard_pipes(c);
fpm_child_free(c);
return 0;
}
return c;
}
static struct fpm_child_s *fpm_resources_prepare(struct fpm_worker_pool_s *wp) /* {{{ */
{
struct fpm_child_s *c;
c = fpm_child_alloc();
if (!c) {
zlog(ZLOG_ERROR, "[pool %s] unable to malloc new child", wp->config->name);
return 0;
}
c->wp = wp;
c->fd_stdout = -1; c->fd_stderr = -1;
//创建父子进程通信管道
if (0 > fpm_stdio_prepare_pipes(c)) {
fpm_child_free(c);
return 0;
}
//从请求管理池取一个空闲的管理对象
//此时 c->scoreboard_i=-1
if (0 > fpm_scoreboard_proc_alloc(wp->scoreboard, &c->scoreboard_i)) {
fpm_stdio_discard_pipes(c);
fpm_child_free(c);
return 0;
}
return c;
}
static void fpm_child_resources_use(struct fpm_child_s *child) /* {{{ */
{
struct fpm_worker_pool_s *wp;
for (wp = fpm_worker_all_pools; wp; wp = wp->next) {
if (wp == child->wp) {
continue;
}
fpm_scoreboard_free(wp->scoreboard);
}
fpm_scoreboard_child_use(child->wp->scoreboard, child->scoreboard_i, getpid());
fpm_stdio_child_use_pipes(child);
fpm_child_free(child);
}
static void fpm_child_close(struct fpm_child_s *child, int in_event_loop) /* {{{ */
{
if (child->fd_stdout != -1) {
if (in_event_loop) {
fpm_event_fire(&child->ev_stdout);
}
if (child->fd_stdout != -1) {
close(child->fd_stdout);
}
}
if (child->fd_stderr != -1) {
if (in_event_loop) {
fpm_event_fire(&child->ev_stderr);
}
if (child->fd_stderr != -1) {
close(child->fd_stderr);
}
}
fpm_child_free(child);
}
static void fpm_resources_discard(struct fpm_child_s *child) /* {{{ */
{
fpm_scoreboard_proc_free(child->wp->scoreboard, child->scoreboard_i);
fpm_stdio_discard_pipes(child);
fpm_child_free(child);
}