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/**
* @file llapr.cpp
* @author Phoenix
* @date 2004-11-28
* @brief Helper functions for using the apache portable runtime library.
*
* Copyright (c) 2004-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#include "linden_common.h"
#include "llapr.h"
apr_pool_t *gAPRPoolp = NULL; // Global APR memory pool
apr_thread_mutex_t *gLogMutexp = NULL;
void ll_init_apr()
{
if (!gAPRPoolp)
{
// Initialize APR and create the global pool
apr_initialize();
apr_pool_create(&gAPRPoolp, NULL);
// Initialize the logging mutex
apr_thread_mutex_create(&gLogMutexp, APR_THREAD_MUTEX_DEFAULT, gAPRPoolp);
}
}
void ll_cleanup_apr()
{
llinfos << "Cleaning up APR" << llendl;
if (gLogMutexp)
{
// Clean up the logging mutex
// All other threads NEED to be done before we clean up APR, so this is okay.
apr_thread_mutex_destroy(gLogMutexp);
gLogMutexp = NULL;
}
if (gAPRPoolp)
{
apr_pool_destroy(gAPRPoolp);
gAPRPoolp = NULL;
}
apr_terminate();
}
//
// LLScopedLock
//
LLScopedLock::LLScopedLock(apr_thread_mutex_t* mutex) : mMutex(mutex)
{
if(mutex)
{
if(ll_apr_warn_status(apr_thread_mutex_lock(mMutex)))
{
mLocked = false;
}
else
{
mLocked = true;
}
}
else
{
mLocked = false;
}
}
LLScopedLock::~LLScopedLock()
{
unlock();
}
void LLScopedLock::unlock()
{
if(mLocked)
{
if(!ll_apr_warn_status(apr_thread_mutex_unlock(mMutex)))
{
mLocked = false;
}
}
}
//
// Misc functions
//
bool ll_apr_warn_status(apr_status_t status)
{
if(APR_SUCCESS == status) return false;
char buf[MAX_STRING]; /* Flawfinder: ignore */
llwarns << "APR: " << apr_strerror(status, buf, MAX_STRING) << llendl;
return true;
}
void ll_apr_assert_status(apr_status_t status)
{
llassert(ll_apr_warn_status(status) == false);
}
apr_file_t* ll_apr_file_open(const LLString& filename, apr_int32_t flags, S32* sizep)
{
apr_file_t* apr_file;
apr_status_t s;
s = apr_file_open(&apr_file, filename.c_str(), flags, APR_OS_DEFAULT, gAPRPoolp);
if (s != APR_SUCCESS)
{
if (sizep)
{
*sizep = 0;
}
return NULL;
}
if (sizep)
{
S32 file_size = 0;
apr_off_t offset = 0;
if (apr_file_seek(apr_file, APR_END, &offset) == APR_SUCCESS)
{
file_size = (S32)offset;
offset = 0;
apr_file_seek(apr_file, APR_SET, &offset);
}
*sizep = file_size;
}
return apr_file;
}
S32 ll_apr_file_read(apr_file_t* apr_file, void *buf, S32 nbytes)
{
apr_size_t sz = nbytes;
apr_status_t s = apr_file_read(apr_file, buf, &sz);
if (s != APR_SUCCESS)
{
return 0;
}
else
{
return (S32)sz;
}
}
S32 ll_apr_file_write(apr_file_t* apr_file, const void *buf, S32 nbytes)
{
apr_size_t sz = nbytes;
apr_status_t s = apr_file_write(apr_file, buf, &sz);
if (s != APR_SUCCESS)
{
return 0;
}
else
{
return (S32)sz;
}
}
S32 ll_apr_file_seek(apr_file_t* apr_file, apr_seek_where_t where, S32 offset)
{
apr_off_t apr_offset = offset;
apr_status_t s = apr_file_seek(apr_file, where, &apr_offset);
if (s != APR_SUCCESS)
{
return -1;
}
else
{
return (S32)apr_offset;
}
}
bool ll_apr_file_remove(const LLString& filename)
{
apr_status_t s;
s = apr_file_remove(filename.c_str(), gAPRPoolp);
if (s != APR_SUCCESS)
{
llwarns << "ll_apr_file_remove failed on file: " << filename << llendl;
return false;
}
return true;
}
bool ll_apr_file_rename(const LLString& filename, const LLString& newname)
{
apr_status_t s;
s = apr_file_rename(filename.c_str(), newname.c_str(), gAPRPoolp);
if (s != APR_SUCCESS)
{
llwarns << "ll_apr_file_rename failed on file: " << filename << llendl;
return false;
}
return true;
}
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