You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

109 lines
3.1 KiB

#include <lighttpd/base.h>
struct collect_job;
typedef struct collect_job collect_job;
struct collect_job {
enum { COLLECT_FUNC, COLLECT_CB } type;
collect_info *ci;
};
static collect_info* collect_info_new(worker *ctx, CollectFunc func, gpointer fdata, CollectFree free_fdata, CollectCallback cb, gpointer cbdata) {
collect_info *ci = g_slice_new(collect_info);
ci->wrk = ctx;
ci->counter = ctx->srv->worker_count;
ci->stopped = FALSE;
ci->func = func;
ci->fdata = fdata;
ci->free_fdata = free_fdata;
ci->cb = cb;
ci->cbdata = cbdata;
ci->results = g_ptr_array_sized_new(ctx->srv->worker_count);
g_ptr_array_set_size(ci->results, ctx->srv->worker_count);
return ci;
}
static void collect_info_free(collect_info *ci) {
g_ptr_array_free(ci->results, TRUE);
g_slice_free(collect_info, ci);
}
static void collect_insert_callback(worker *ctx, collect_info *ci) {
if (ctx == ci->wrk) {
/* we are in the destiation context */
ci->cb(ci->cbdata, ci->fdata, ci->results, !ci->stopped);
collect_info_free(ci);
} else {
worker *wrk = ci->wrk;
collect_job *j = g_slice_new(collect_job);
j->type = COLLECT_CB;
j->ci = ci;
g_async_queue_push(wrk->collect_queue, j);
ev_async_send(wrk->loop, &wrk->collect_watcher);
}
}
static void collect_send_result(worker *ctx, collect_info *ci) {
if (!g_atomic_int_dec_and_test(&ci->counter)) return; /* not all workers done yet */
if (g_atomic_int_get(&ctx->srv->exiting)) {
/* cleanup state, just call the callback with complete = FALSE */
ci->cb(ci->cbdata, ci->fdata, ci->results, FALSE);
collect_info_free(ci);
} else {
/* no worker is freed yet */
collect_insert_callback(ctx, ci);
}
}
static void collect_insert_func(worker *ctx, collect_info *ci) {
guint i;
server *srv = ctx->srv;
for (i = 0; i < srv->worker_count; i++) {
worker *wrk;
wrk = g_array_index(srv->workers, worker*, i);
if (wrk == ctx) {
/* we are in the destiation context */
g_ptr_array_index(ci->results, wrk->ndx) = ci->func(wrk, ci->fdata);
collect_send_result(wrk, ci);
} else {
collect_job *j = g_slice_new(collect_job);
j->type = COLLECT_FUNC;
j->ci = ci;
g_async_queue_push(wrk->collect_queue, j);
ev_async_send(wrk->loop, &wrk->collect_watcher);
}
}
}
collect_info* collect_start(worker *ctx, CollectFunc func, gpointer fdata, CollectFree free_fdata, CollectCallback cb, gpointer cbdata) {
collect_info *ci = collect_info_new(ctx, func, fdata, free_fdata, cb, cbdata);
collect_insert_func(ctx, ci);
return ci;
}
void collect_break(collect_info* ci) {
ci->stopped = TRUE;
}
void collect_watcher_cb(struct ev_loop *loop, ev_async *w, int revents) {
worker *wrk = (worker*) w->data;
collect_job *j;
UNUSED(loop);
UNUSED(revents);
while (NULL != (j = (collect_job*) g_async_queue_try_pop(wrk->collect_queue))) {
collect_info *ci = j->ci;
switch (j->type) {
case COLLECT_FUNC:
g_ptr_array_index(ci->results, wrk->ndx) = ci->func(wrk, ci->fdata);
collect_send_result(wrk, ci);
break;
case COLLECT_CB:
ci->cb(ci->cbdata, ci->fdata, ci->results, !ci->stopped);
collect_info_free(ci);
break;
}
g_slice_free(collect_job, j);
}
}