forked from github/server
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
#include <platform.h>
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#include "callback.h"
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#include <stdlib.h>
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#include <string.h>
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static struct reg {
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struct reg * next;
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HCALLBACK cb;
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char *name;
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} *registry;
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HCALLBACK create_callback(void(*cbv)(va_list va)) {
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HCALLBACK cb;
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cb.cbv = cbv;
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return cb;
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}
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void reset_callbacks(void) {
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while (registry) {
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struct reg *r = registry;
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registry = r->next;
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free(r->name);
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free(r);
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}
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registry = 0;
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}
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HCALLBACK register_callback(const char *name, void(*cbv)(va_list va))
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{
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struct reg * r = (struct reg *)malloc(sizeof(struct reg));
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r->next = registry;
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r->name = _strdup(name);
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r->cb.cbv = cbv;
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registry = r;
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return r->cb;
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}
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int find_callback(const char *name, HCALLBACK *result) {
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if (result && name) {
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struct reg *r;
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for (r = registry; r; r = r->next) {
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if (strcmp(r->name, name) == 0) {
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*result = r->cb;
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return 0;
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}
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}
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}
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return -1;
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}
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int call_callback(HCALLBACK cb, const char *name, ...) {
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va_list ap;
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if (name) {
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int err = find_callback(name, &cb);
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if (err) return err;
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}
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va_start(ap, name);
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cb.cbv(ap);
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va_end(ap);
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return 0;
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}
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