mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 06:35:42 +00:00
117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "nsProperties.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
NS_IMPL_AGGREGATED(nsProperties)
|
|
NS_INTERFACE_MAP_BEGIN_AGGREGATED(nsProperties)
|
|
NS_INTERFACE_MAP_ENTRY(nsIProperties)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::Get(const char* prop, const nsIID & uuid, void* *result)
|
|
{
|
|
if (NS_WARN_IF(!prop))
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
nsCOMPtr<nsISupports> value;
|
|
if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return (value) ? value->QueryInterface(uuid, result) : NS_ERROR_NO_INTERFACE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::Set(const char* prop, nsISupports* value)
|
|
{
|
|
if (NS_WARN_IF(!prop))
|
|
return NS_ERROR_INVALID_ARG;
|
|
Put(prop, value);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::Undefine(const char* prop)
|
|
{
|
|
if (NS_WARN_IF(!prop))
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
nsCOMPtr<nsISupports> value;
|
|
if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value)))
|
|
return NS_ERROR_FAILURE;
|
|
|
|
Remove(prop);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::Has(const char* prop, bool *result)
|
|
{
|
|
if (NS_WARN_IF(!prop))
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
nsCOMPtr<nsISupports> value;
|
|
*result = nsProperties_HashBase::Get(prop,
|
|
getter_AddRefs(value));
|
|
return NS_OK;
|
|
}
|
|
|
|
struct GetKeysEnumData
|
|
{
|
|
char **keys;
|
|
uint32_t next;
|
|
nsresult res;
|
|
};
|
|
|
|
PLDHashOperator
|
|
GetKeysEnumerate(const char *key, nsISupports* data,
|
|
void *arg)
|
|
{
|
|
GetKeysEnumData *gkedp = (GetKeysEnumData *)arg;
|
|
gkedp->keys[gkedp->next] = strdup(key);
|
|
|
|
if (!gkedp->keys[gkedp->next]) {
|
|
gkedp->res = NS_ERROR_OUT_OF_MEMORY;
|
|
return PL_DHASH_STOP;
|
|
}
|
|
|
|
gkedp->next++;
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsProperties::GetKeys(uint32_t *count, char ***keys)
|
|
{
|
|
if (NS_WARN_IF(!count) || NS_WARN_IF(!keys))
|
|
return NS_ERROR_INVALID_ARG;
|
|
|
|
uint32_t n = Count();
|
|
char ** k = (char **) nsMemory::Alloc(n * sizeof(char *));
|
|
|
|
GetKeysEnumData gked;
|
|
gked.keys = k;
|
|
gked.next = 0;
|
|
gked.res = NS_OK;
|
|
|
|
EnumerateRead(GetKeysEnumerate, &gked);
|
|
|
|
nsresult rv = gked.res;
|
|
if (NS_FAILED(rv)) {
|
|
// Free 'em all
|
|
for (uint32_t i = 0; i < gked.next; i++)
|
|
nsMemory::Free(k[i]);
|
|
nsMemory::Free(k);
|
|
return rv;
|
|
}
|
|
|
|
*count = n;
|
|
*keys = k;
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|