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zookeeper_lib.c
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zookeeper_lib.c
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/* Ruby wrapper for the Zookeeper C API
This file contains three sets of helpers:
- the event queue that glues RB<->C together
- the completions that marshall data between RB<->C formats
- functions for translating between Ruby and C versions of ZK datatypes
wickman@twitter.com
*********************************************************************************
*
* NOTE: be *very careful* in these functions, calling *ANY* ruby interpreter
* function when you're not in an interpreter thread can hork ruby, trigger a
* [BUG], corrupt the stack, kill your dog, knock up your daughter, etc. etc.
*
*********************************************************************************
slyphon@gmail.com
*/
#include "ruby.h"
#include "zookeeper_lib.h"
#include "c-client-src/zookeeper.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#include <inttypes.h>
#include "dbg.h"
#define GET_SYM(str) ID2SYM(rb_intern(str))
int ZKRBDebugging;
// XXX(slyphon): need to check these for error, but what to do if they fail?
pthread_mutex_t zkrb_q_mutex = PTHREAD_MUTEX_INITIALIZER;
#define LOG_PTHREAD_ERR(A, M, ...) if (A) { log_err(M, ##__VA_ARGS__); errno=0; }
#define GLOBAL_MUTEX_LOCK(F) LOG_PTHREAD_ERR(pthread_mutex_lock(&zkrb_q_mutex), F)
#define GLOBAL_MUTEX_UNLOCK(F) LOG_PTHREAD_ERR(pthread_mutex_unlock(&zkrb_q_mutex), F)
void zkrb_enqueue(zkrb_queue_t *q, zkrb_event_t *elt) {
GLOBAL_MUTEX_LOCK("zkrb_enqueue");
check_debug(q != NULL && q->tail != NULL, "zkrb_enqueue: queue ptr or tail was NULL\n");
q->tail->event = elt;
q->tail->next = (struct zkrb_event_ll_t *) malloc(sizeof(struct zkrb_event_ll_t));
q->tail = q->tail->next;
q->tail->event = NULL;
q->tail->next = NULL;
ssize_t ret = write(q->pipe_write, "0", 1); /* Wake up Ruby listener */
// XXX(slyphon): can't raise a ruby exception here as we may not be calling
// this from a ruby thread. Calling into the interpreter from a non-ruby
// thread is bad, mm'kay?
check(ret != -1, "write to queue (%p) pipe failed!\n", q);
error:
GLOBAL_MUTEX_UNLOCK("zkrb_enqueue");
}
// NOTE: the zkrb_event_t* returned *is* the same pointer that's part of the
// queue, the only place this is used is in method_has_events, and it is simply
// tested for null-ness. it's probably better to make the null-test here and
// not return the pointer
//
zkrb_event_t * zkrb_peek(zkrb_queue_t *q) {
zkrb_event_t *event = NULL;
GLOBAL_MUTEX_LOCK("zkrb_peek");
if (q != NULL && q->head != NULL && q->head->event != NULL) {
event = q->head->event;
}
GLOBAL_MUTEX_UNLOCK("zkrb_peek");
return event;
}
#define ZKRB_QUEUE_EMPTY(q) (q == NULL || q->head == NULL || q->head->event == NULL)
zkrb_event_t* zkrb_dequeue(zkrb_queue_t *q, int need_lock) {
zkrb_event_t *rv = NULL;
if (need_lock)
GLOBAL_MUTEX_LOCK("zkrb_dequeue");
if (!ZKRB_QUEUE_EMPTY(q)) {
struct zkrb_event_ll_t *old_root = q->head;
q->head = q->head->next;
rv = old_root->event;
free(old_root);
}
if (need_lock)
GLOBAL_MUTEX_UNLOCK("zkrb_dequeue");
return rv;
}
void zkrb_signal(zkrb_queue_t *q) {
GLOBAL_MUTEX_LOCK("zkrb_signal");
if (!write(q->pipe_write, "0", 1)) /* Wake up Ruby listener */
log_err("zkrb_signal: write to pipe failed, could not wake");
GLOBAL_MUTEX_UNLOCK("zkrb_signal");
}
zkrb_queue_t *zkrb_queue_alloc(void) {
// some of the locking is a little coarse, but it
// eases the logic of releasing in case of error.
GLOBAL_MUTEX_LOCK("zkrb_queue_alloc");
int pfd[2];
zkrb_queue_t *rq = NULL;
check(pipe(pfd) == 0, "creating the signal pipe failed");
rq = malloc(sizeof(zkrb_queue_t));
check_mem(rq);
rq->head = malloc(sizeof(struct zkrb_event_ll_t));
check_mem(rq->head);
rq->head->event = NULL; rq->head->next = NULL;
rq->tail = rq->head;
rq->pipe_read = pfd[0];
rq->pipe_write = pfd[1];
GLOBAL_MUTEX_UNLOCK("zkrb_queue_alloc");
return rq;
error:
GLOBAL_MUTEX_UNLOCK("zkrb_queue_alloc");
return NULL;
}
void zkrb_queue_free(zkrb_queue_t *queue) {
GLOBAL_MUTEX_LOCK("zkrb_queue_free");
check_debug(queue != NULL, "zkrb_queue_free: queue was NULL");
zkrb_event_t *elt;
while ((elt = zkrb_dequeue(queue, 0)) != NULL) {
zkrb_event_free(elt);
}
free(queue->head);
close(queue->pipe_read);
close(queue->pipe_write);
free(queue);
error:
GLOBAL_MUTEX_UNLOCK("zkrb_queue_free");
}
zkrb_event_t *zkrb_event_alloc(void) {
zkrb_event_t *rv = (zkrb_event_t *) malloc(sizeof(zkrb_event_t));
return rv;
}
void zkrb_event_free(zkrb_event_t *event) {
switch (event->type) {
case ZKRB_DATA: {
struct zkrb_data_completion *data_ctx = event->completion.data_completion;
free(data_ctx->data);
free(data_ctx->stat);
free(data_ctx);
break;
}
case ZKRB_STAT: {
struct zkrb_stat_completion *stat_ctx = event->completion.stat_completion;
free(stat_ctx->stat);
free(stat_ctx);
break;
}
case ZKRB_STRING: {
struct zkrb_string_completion *string_ctx = event->completion.string_completion;
free(string_ctx->value);
free(string_ctx);
break;
}
case ZKRB_STRINGS: {
struct zkrb_strings_completion *strings_ctx = event->completion.strings_completion;
int k;
if (strings_ctx->values)
for (k = 0; k < strings_ctx->values->count; ++k) free(strings_ctx->values->data[k]);
free(strings_ctx->values);
free(strings_ctx);
break;
}
case ZKRB_STRINGS_STAT: {
struct zkrb_strings_stat_completion *strings_stat_ctx = event->completion.strings_stat_completion;
int k;
if (strings_stat_ctx->values)
for (k = 0; k < strings_stat_ctx->values->count; ++k) free(strings_stat_ctx->values->data[k]);
free(strings_stat_ctx->values);
if (strings_stat_ctx->stat)
free(strings_stat_ctx->stat);
free(strings_stat_ctx);
break;
}
case ZKRB_ACL: {
struct zkrb_acl_completion *acl_ctx = event->completion.acl_completion;
if (acl_ctx->acl) {
deallocate_ACL_vector(acl_ctx->acl);
free(acl_ctx->acl);
}
free(acl_ctx->stat);
free(acl_ctx);
break;
}
case ZKRB_WATCHER: {
struct zkrb_watcher_completion *watcher_ctx = event->completion.watcher_completion;
free(watcher_ctx->path);
free(watcher_ctx);
break;
}
case ZKRB_VOID: {
break;
}
default:
#warning [wickman] TODO raise an exception?
fprintf(stderr, "ERROR?\n");
}
free(event);
}
/* this is called only from a method_get_latest_event, so the hash is
allocated on the proper thread stack */
VALUE zkrb_event_to_ruby(zkrb_event_t *event) {
VALUE hash = rb_hash_new();
rb_hash_aset(hash, GET_SYM("req_id"), LL2NUM(event->req_id));
if (event->type != ZKRB_WATCHER)
rb_hash_aset(hash, GET_SYM("rc"), INT2FIX(event->rc));
switch (event->type) {
case ZKRB_DATA: {
struct zkrb_data_completion *data_ctx = event->completion.data_completion;
if (ZKRBDebugging) zkrb_print_stat(data_ctx->stat);
rb_hash_aset(hash, GET_SYM("data"), data_ctx->data ? rb_str_new(data_ctx->data, data_ctx->data_len) : Qnil);
rb_hash_aset(hash, GET_SYM("stat"), data_ctx->stat ? zkrb_stat_to_rarray(data_ctx->stat) : Qnil);
break;
}
case ZKRB_STAT: {
if (ZKRBDebugging) fprintf(stderr, "zkrb_event_to_ruby ZKRB_STAT\n");
struct zkrb_stat_completion *stat_ctx = event->completion.stat_completion;
rb_hash_aset(hash, GET_SYM("stat"), stat_ctx->stat ? zkrb_stat_to_rarray(stat_ctx->stat) : Qnil);
break;
}
case ZKRB_STRING: {
if (ZKRBDebugging) fprintf(stderr, "zkrb_event_to_ruby ZKRB_STRING\n");
struct zkrb_string_completion *string_ctx = event->completion.string_completion;
rb_hash_aset(hash, GET_SYM("string"), string_ctx->value ? rb_str_new2(string_ctx->value) : Qnil);
break;
}
case ZKRB_STRINGS: {
if (ZKRBDebugging) fprintf(stderr, "zkrb_event_to_ruby ZKRB_STRINGS\n");
struct zkrb_strings_completion *strings_ctx = event->completion.strings_completion;
rb_hash_aset(hash, GET_SYM("strings"), strings_ctx->values ? zkrb_string_vector_to_ruby(strings_ctx->values) : Qnil);
break;
}
case ZKRB_STRINGS_STAT: {
if (ZKRBDebugging) fprintf(stderr, "zkrb_event_to_ruby ZKRB_STRINGS_STAT\n");
struct zkrb_strings_stat_completion *strings_stat_ctx = event->completion.strings_stat_completion;
rb_hash_aset(hash, GET_SYM("strings"), strings_stat_ctx->values ? zkrb_string_vector_to_ruby(strings_stat_ctx->values) : Qnil);
rb_hash_aset(hash, GET_SYM("stat"), strings_stat_ctx->stat ? zkrb_stat_to_rarray(strings_stat_ctx->stat) : Qnil);
break;
}
case ZKRB_ACL: {
if (ZKRBDebugging) fprintf(stderr, "zkrb_event_to_ruby ZKRB_ACL\n");
struct zkrb_acl_completion *acl_ctx = event->completion.acl_completion;
rb_hash_aset(hash, GET_SYM("acl"), acl_ctx->acl ? zkrb_acl_vector_to_ruby(acl_ctx->acl) : Qnil);
rb_hash_aset(hash, GET_SYM("stat"), acl_ctx->stat ? zkrb_stat_to_rarray(acl_ctx->stat) : Qnil);
break;
}
case ZKRB_WATCHER: {
if (ZKRBDebugging) fprintf(stderr, "zkrb_event_to_ruby ZKRB_WATCHER\n");
struct zkrb_acl_completion *acl_ctx = event->completion.acl_completion;
struct zkrb_watcher_completion *watcher_ctx = event->completion.watcher_completion;
rb_hash_aset(hash, GET_SYM("type"), INT2FIX(watcher_ctx->type));
rb_hash_aset(hash, GET_SYM("state"), INT2FIX(watcher_ctx->state));
rb_hash_aset(hash, GET_SYM("path"), watcher_ctx->path ? rb_str_new2(watcher_ctx->path) : Qnil);
break;
}
case ZKRB_VOID:
default:
break;
}
return hash;
}
void zkrb_print_stat(const struct Stat *s) {
fprintf(stderr, "stat {\n");
if (s != NULL) {
fprintf(stderr, "\t czxid: %"PRId64"\n", s->czxid); // PRId64 defined in inttypes.h
fprintf(stderr, "\t mzxid: %"PRId64"\n", s->mzxid);
fprintf(stderr, "\t ctime: %"PRId64"\n", s->ctime);
fprintf(stderr, "\t mtime: %"PRId64"\n", s->mtime);
fprintf(stderr, "\t version: %d\n", s->version);
fprintf(stderr, "\t cversion: %d\n", s->cversion);
fprintf(stderr, "\t aversion: %d\n", s->aversion);
fprintf(stderr, "\t ephemeralOwner: %"PRId64"\n", s->ephemeralOwner);
fprintf(stderr, "\t dataLength: %d\n", s->dataLength);
fprintf(stderr, "\t numChildren: %d\n", s->numChildren);
fprintf(stderr, "\t pzxid: %"PRId64"\n", s->pzxid);
} else {
fprintf(stderr, "\tNULL\n");
}
fprintf(stderr, "}\n");
}
zkrb_calling_context *zkrb_calling_context_alloc(int64_t req_id, zkrb_queue_t *queue) {
zkrb_calling_context *ctx = malloc(sizeof(zkrb_calling_context));
ctx->req_id = req_id;
ctx->queue = queue;
return ctx;
}
void zkrb_print_calling_context(zkrb_calling_context *ctx) {
fprintf(stderr, "calling context (%p){\n", ctx);
fprintf(stderr, "\treq_id = %"PRId64"\n", ctx->req_id);
fprintf(stderr, "\tqueue = %p\n", ctx->queue);
fprintf(stderr, "}\n");
}
/*
process completions that get queued to the watcher queue, translate events
to completions that the ruby side dispatches via callbacks.
The calling_ctx can be thought of as the outer shell that we discard in
this macro after pulling out the gooey delicious center.
*/
#define ZKH_SETUP_EVENT(qptr, eptr) \
zkrb_calling_context *ctx = (zkrb_calling_context *) calling_ctx; \
zkrb_event_t *eptr = zkrb_event_alloc(); \
eptr->req_id = ctx->req_id; \
zkrb_queue_t *qptr = ctx->queue; \
if (eptr->req_id != ZKRB_GLOBAL_REQ) free(ctx)
void zkrb_state_callback(
zhandle_t *zh, int type, int state, const char *path, void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_STATE WATCHER "
"type = %d, state = %d, path = %p, value = %s\n",
type, state, (void *) path, path ? path : "NULL");
/* save callback context */
struct zkrb_watcher_completion *wc = malloc(sizeof(struct zkrb_watcher_completion));
wc->type = type;
wc->state = state;
wc->path = strdup(path);
// This is unfortunate copy-pasta from ZKH_SETUP_EVENT with one change: we
// check type instead of the req_id to see if we need to free the ctx.
zkrb_calling_context *ctx = (zkrb_calling_context *) calling_ctx;
zkrb_event_t *event = zkrb_event_alloc();
event->req_id = ctx->req_id;
zkrb_queue_t *queue = ctx->queue;
if (type != ZOO_SESSION_EVENT) {
free(ctx);
ctx = NULL;
}
event->type = ZKRB_WATCHER;
event->completion.watcher_completion = wc;
zkrb_enqueue(queue, event);
}
void zkrb_data_callback(
int rc, const char *value, int value_len, const struct Stat *stat, const void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_DATA WATCHER "
"rc = %d (%s), value = %s, len = %d\n",
rc, zerror(rc), value ? value : "NULL", value_len);
/* copy data completion */
struct zkrb_data_completion *dc = malloc(sizeof(struct zkrb_data_completion));
dc->data = NULL;
dc->stat = NULL;
dc->data_len = 0;
if (value != NULL) {
dc->data = malloc(value_len);
dc->data_len = value_len;
memcpy(dc->data, value, value_len);
}
if (stat != NULL) { dc->stat = malloc(sizeof(struct Stat)); memcpy(dc->stat, stat, sizeof(struct Stat)); }
ZKH_SETUP_EVENT(queue, event);
event->rc = rc;
event->type = ZKRB_DATA;
event->completion.data_completion = dc;
zkrb_enqueue(queue, event);
}
void zkrb_stat_callback(
int rc, const struct Stat *stat, const void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_STAT WATCHER "
"rc = %d (%s)\n", rc, zerror(rc));
struct zkrb_stat_completion *sc = malloc(sizeof(struct zkrb_stat_completion));
sc->stat = NULL;
if (stat != NULL) { sc->stat = malloc(sizeof(struct Stat)); memcpy(sc->stat, stat, sizeof(struct Stat)); }
ZKH_SETUP_EVENT(queue, event);
event->rc = rc;
event->type = ZKRB_STAT;
event->completion.stat_completion = sc;
zkrb_enqueue(queue, event);
}
void zkrb_string_callback(
int rc, const char *string, const void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_STRING WATCHER "
"rc = %d (%s)\n", rc, zerror(rc));
struct zkrb_string_completion *sc = malloc(sizeof(struct zkrb_string_completion));
sc->value = NULL;
if (string)
sc->value = strdup(string);
ZKH_SETUP_EVENT(queue, event);
event->rc = rc;
event->type = ZKRB_STRING;
event->completion.string_completion = sc;
zkrb_enqueue(queue, event);
}
void zkrb_strings_callback(
int rc, const struct String_vector *strings, const void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_STRINGS WATCHER "
"rc = %d (%s), calling_ctx = %p\n", rc, zerror(rc), calling_ctx);
/* copy string vector */
struct zkrb_strings_completion *sc = malloc(sizeof(struct zkrb_strings_completion));
sc->values = (strings != NULL) ? zkrb_clone_string_vector(strings) : NULL;
ZKH_SETUP_EVENT(queue, event);
event->rc = rc;
event->type = ZKRB_STRINGS;
event->completion.strings_completion = sc;
zkrb_enqueue(queue, event);
}
void zkrb_strings_stat_callback(
int rc, const struct String_vector *strings, const struct Stat *stat, const void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_STRINGS_STAT WATCHER "
"rc = %d (%s), calling_ctx = %p\n", rc, zerror(rc), calling_ctx);
struct zkrb_strings_stat_completion *sc = malloc(sizeof(struct zkrb_strings_stat_completion));
sc->stat = NULL;
if (stat != NULL) { sc->stat = malloc(sizeof(struct Stat)); memcpy(sc->stat, stat, sizeof(struct Stat)); }
sc->values = (strings != NULL) ? zkrb_clone_string_vector(strings) : NULL;
ZKH_SETUP_EVENT(queue, event);
event->rc = rc;
event->type = ZKRB_STRINGS_STAT;
event->completion.strings_stat_completion = sc;
zkrb_enqueue(queue, event);
}
void zkrb_void_callback(int rc, const void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_VOID WATCHER "
"rc = %d (%s)\n", rc, zerror(rc));
ZKH_SETUP_EVENT(queue, event);
event->rc = rc;
event->type = ZKRB_VOID;
event->completion.void_completion = NULL;
zkrb_enqueue(queue, event);
}
void zkrb_acl_callback(
int rc, struct ACL_vector *acls, struct Stat *stat, const void *calling_ctx) {
zkrb_debug("ZOOKEEPER_C_ACL WATCHER rc = %d (%s)\n", rc, zerror(rc));
struct zkrb_acl_completion *ac = malloc(sizeof(struct zkrb_acl_completion));
ac->acl = NULL;
ac->stat = NULL;
if (acls != NULL) { ac->acl = zkrb_clone_acl_vector(acls); }
if (stat != NULL) { ac->stat = malloc(sizeof(struct Stat)); memcpy(ac->stat, stat, sizeof(struct Stat)); }
ZKH_SETUP_EVENT(queue, event);
event->rc = rc;
event->type = ZKRB_ACL;
event->completion.acl_completion = ac;
/* should be synchronized */
zkrb_enqueue(queue, event);
}
VALUE zkrb_id_to_ruby(struct Id *id) {
VALUE hash = rb_hash_new();
rb_hash_aset(hash, GET_SYM("scheme"), rb_str_new2(id->scheme));
rb_hash_aset(hash, GET_SYM("id"), rb_str_new2(id->id));
return hash;
}
VALUE zkrb_acl_to_ruby(struct ACL *acl) {
VALUE hash = rb_hash_new();
rb_hash_aset(hash, GET_SYM("perms"), INT2NUM(acl->perms));
rb_hash_aset(hash, GET_SYM("id"), zkrb_id_to_ruby(&(acl->id)));
return hash;
}
#warning [wickman] TODO test zkrb_ruby_to_aclvector
#warning [slyphon] TODO size checking on acl_ary (cast to int)
struct ACL_vector * zkrb_ruby_to_aclvector(VALUE acl_ary) {
Check_Type(acl_ary, T_ARRAY);
struct ACL_vector *v = malloc(sizeof(struct ACL_vector));
allocate_ACL_vector(v, (int)RARRAY_LEN(acl_ary));
int k;
for (k = 0; k < v->count; ++k) {
VALUE acl_val = rb_ary_entry(acl_ary, k);
v->data[k] = zkrb_ruby_to_acl(acl_val);
}
return v;
}
#warning [wickman] TODO test zkrb_ruby_to_aclvector
struct ACL zkrb_ruby_to_acl(VALUE rubyacl) {
struct ACL acl;
VALUE perms = rb_iv_get(rubyacl, "@perms");
VALUE rubyid = rb_iv_get(rubyacl, "@id");
acl.perms = NUM2INT(perms);
acl.id = zkrb_ruby_to_id(rubyid);
return acl;
}
#warning [wickman] TODO zkrb_ruby_to_id error checking? test
struct Id zkrb_ruby_to_id(VALUE rubyid) {
struct Id id;
VALUE scheme = rb_iv_get(rubyid, "@scheme");
VALUE ident = rb_iv_get(rubyid, "@id");
if (scheme != Qnil) {
id.scheme = malloc(RSTRING_LEN(scheme) + 1);
strncpy(id.scheme, RSTRING_PTR(scheme), RSTRING_LEN(scheme));
id.scheme[RSTRING_LEN(scheme)] = '\0';
} else {
id.scheme = NULL;
}
if (ident != Qnil) {
id.id = malloc(RSTRING_LEN(ident) + 1);
strncpy(id.id, RSTRING_PTR(ident), RSTRING_LEN(ident));
id.id[RSTRING_LEN(ident)] = '\0';
} else {
id.id = NULL;
}
return id;
}
VALUE zkrb_acl_vector_to_ruby(struct ACL_vector *acl_vector) {
int i;
VALUE ary = rb_ary_new2(acl_vector->count);
for(i = 0; i < acl_vector->count; i++) {
rb_ary_push(ary, zkrb_acl_to_ruby(acl_vector->data+i));
}
return ary;
}
VALUE zkrb_string_vector_to_ruby(struct String_vector *string_vector) {
int i;
VALUE ary = rb_ary_new2(string_vector->count);
for(i = 0; i < string_vector->count; i++) {
rb_ary_push(ary, rb_str_new2(string_vector->data[i]));
}
return ary;
}
VALUE zkrb_stat_to_rarray(const struct Stat* stat) {
return rb_ary_new3(11,
LL2NUM(stat->czxid),
LL2NUM(stat->mzxid),
LL2NUM(stat->ctime),
LL2NUM(stat->mtime),
INT2NUM(stat->version),
INT2NUM(stat->cversion),
INT2NUM(stat->aversion),
LL2NUM(stat->ephemeralOwner),
INT2NUM(stat->dataLength),
INT2NUM(stat->numChildren),
LL2NUM(stat->pzxid));
}
VALUE zkrb_stat_to_rhash(const struct Stat *stat) {
VALUE ary = rb_hash_new();
rb_hash_aset(ary, GET_SYM("czxid"), LL2NUM(stat->czxid));
rb_hash_aset(ary, GET_SYM("mzxid"), LL2NUM(stat->mzxid));
rb_hash_aset(ary, GET_SYM("ctime"), LL2NUM(stat->ctime));
rb_hash_aset(ary, GET_SYM("mtime"), LL2NUM(stat->mtime));
rb_hash_aset(ary, GET_SYM("version"), INT2NUM(stat->version));
rb_hash_aset(ary, GET_SYM("cversion"), INT2NUM(stat->cversion));
rb_hash_aset(ary, GET_SYM("aversion"), INT2NUM(stat->aversion));
rb_hash_aset(ary, GET_SYM("ephemeralOwner"), LL2NUM(stat->ephemeralOwner));
rb_hash_aset(ary, GET_SYM("dataLength"), INT2NUM(stat->dataLength));
rb_hash_aset(ary, GET_SYM("numChildren"), INT2NUM(stat->numChildren));
rb_hash_aset(ary, GET_SYM("pzxid"), LL2NUM(stat->pzxid));
return ary;
}
#warning [wickman] TODO test zkrb_clone_acl_vector
struct ACL_vector * zkrb_clone_acl_vector(struct ACL_vector * src) {
struct ACL_vector * dst = malloc(sizeof(struct ACL_vector));
allocate_ACL_vector(dst, src->count);
int k;
for (k = 0; k < src->count; ++k) {
struct ACL * elt = &src->data[k];
dst->data[k].id.scheme = strdup(elt->id.scheme);
dst->data[k].id.id = strdup(elt->id.id);
dst->data[k].perms = elt->perms;
}
return dst;
}
#warning [wickman] TODO test zkrb_clone_string_vector
struct String_vector * zkrb_clone_string_vector(const struct String_vector * src) {
struct String_vector * dst = malloc(sizeof(struct String_vector));
allocate_String_vector(dst, src->count);
int k;
for (k = 0; k < src->count; ++k) {
dst->data[k] = strdup(src->data[k]);
}
return dst;
}
// vim:sts=2:sw=2:et