sourcemod/core/systems/LibrarySys.cpp
Scott Ehlert 251cced1f8 Spring Cleaning, Part Ichi (1)
Various minor things done to project files
Updated sample extension project file and updated makefile to the new unified version (more changes likely on the way)
Updated regex project file and makefile

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401971
2008-03-30 07:00:22 +00:00

429 lines
8.6 KiB
C++

/**
* vim: set ts=4 :
* =============================================================================
* SourceMod
* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, AlliedModders LLC gives you permission to link the
* code of this program (as well as its derivative works) to "Half-Life 2," the
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, AlliedModders LLC grants
* this exception to all derivative works. AlliedModders LLC defines further
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
* or <http://www.sourcemod.net/license.php>.
*
* Version: $Id$
*/
#include <sys/stat.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <sm_platform.h>
#include "sm_stringutil.h"
#include "LibrarySys.h"
LibrarySystem g_LibSys;
CLibrary::~CLibrary()
{
if (m_lib)
{
#if defined PLATFORM_WINDOWS
FreeLibrary(m_lib);
#elif defined PLATFORM_POSIX
dlclose(m_lib);
#endif
m_lib = NULL;
}
}
CLibrary::CLibrary(LibraryHandle me)
{
m_lib = me;
}
void CLibrary::CloseLibrary()
{
delete this;
}
void *CLibrary::GetSymbolAddress(const char *symname)
{
#if defined PLATFORM_WINDOWS
return GetProcAddress(m_lib, symname);
#elif defined PLATFORM_POSIX
return dlsym(m_lib, symname);
#endif
}
/********************
** Directory Code **
********************/
CDirectory::CDirectory(const char *path)
{
#if defined PLATFORM_WINDOWS
char newpath[PLATFORM_MAX_PATH];
snprintf(newpath, sizeof(newpath), "%s\\*.*", path);
m_dir = FindFirstFileA(newpath, &m_fd);
if (!IsValid())
{
m_fd.cFileName[0] = '\0';
}
#elif defined PLATFORM_POSIX
m_dir = opendir(path);
if (IsValid())
{
/* :TODO: we need to read past "." and ".."! */
ep = readdir(m_dir);
snprintf(m_origpath, PLATFORM_MAX_PATH, "%s", path);
} else {
ep = NULL;
}
#endif
}
CDirectory::~CDirectory()
{
if (IsValid())
{
#if defined PLATFORM_WINDOWS
FindClose(m_dir);
#elif defined PLATFORM_POSIX
closedir(m_dir);
#endif
}
}
void CDirectory::NextEntry()
{
#if defined PLATFORM_WINDOWS
if (FindNextFile(m_dir, &m_fd) == 0)
{
FindClose(m_dir);
m_dir = INVALID_HANDLE_VALUE;
}
#elif defined PLATFORM_POSIX
if ((ep=readdir(m_dir)) == NULL)
{
closedir(m_dir);
m_dir = NULL;
}
#endif
}
bool CDirectory::IsEntryValid()
{
return IsValid();
}
bool CDirectory::IsEntryDirectory()
{
#if defined PLATFORM_WINDOWS
return ((m_fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY);
#elif defined PLATFORM_LINUX
char temppath[PLATFORM_MAX_PATH];
snprintf(temppath, sizeof(temppath), "%s/%s", m_origpath, GetEntryName());
return g_LibSys.IsPathDirectory(temppath);
#endif
}
bool CDirectory::IsEntryFile()
{
#if defined PLATFORM_WINDOWS
return !(m_fd.dwFileAttributes & (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_DEVICE));
#elif defined PLATFORM_POSIX
char temppath[PLATFORM_MAX_PATH];
snprintf(temppath, sizeof(temppath), "%s/%s", m_origpath, GetEntryName());
return g_LibSys.IsPathFile(temppath);
#endif
}
const char *CDirectory::GetEntryName()
{
#if defined PLATFORM_WINDOWS
return m_fd.cFileName;
#elif defined PLATFORM_LINUX
return ep ? ep->d_name : "";
#endif
}
bool CDirectory::MoreFiles()
{
return IsValid();
}
bool CDirectory::IsValid()
{
#if defined PLATFORM_WINDOWS
return (m_dir != INVALID_HANDLE_VALUE);
#elif defined PLATFORM_LINUX
return (m_dir != NULL);
#endif
}
/*************************
** Library System Code **
*************************/
bool LibrarySystem::PathExists(const char *path)
{
#if defined PLATFORM_WINDOWS
DWORD attr = GetFileAttributesA(path);
return (attr != INVALID_FILE_ATTRIBUTES);
#elif defined PLATFORM_POSIX
struct stat s;
return (stat(path, &s) == 0);
#endif
}
bool LibrarySystem::IsPathFile(const char *path)
{
#if defined PLATFORM_WINDOWS
DWORD attr = GetFileAttributes(path);
if (attr == INVALID_FILE_ATTRIBUTES)
{
return false;
}
if (attr & (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_DEVICE))
{
return false;
}
return true;
#elif defined PLATFORM_LINUX
struct stat s;
if (stat(path, &s) != 0)
{
return false;
}
return S_ISREG(s.st_mode) ? true : false;
#endif
}
bool LibrarySystem::IsPathDirectory(const char *path)
{
#if defined PLATFORM_WINDOWS
DWORD attr = GetFileAttributes(path);
if (attr == INVALID_FILE_ATTRIBUTES)
{
return false;
}
if (attr & FILE_ATTRIBUTE_DIRECTORY)
{
return true;
}
#elif defined PLATFORM_LINUX
struct stat s;
if (stat(path, &s) != 0)
{
return false;
}
if (S_ISDIR(s.st_mode))
{
return true;
}
#endif
return false;
}
IDirectory *LibrarySystem::OpenDirectory(const char *path)
{
CDirectory *dir = new CDirectory(path);
if (!dir->IsValid())
{
delete dir;
return NULL;
}
return dir;
}
void LibrarySystem::GetPlatformError(char *error, size_t maxlength)
{
if (error && maxlength)
{
#if defined PLATFORM_WINDOWS
DWORD dw = GetLastError();
FormatMessageA(
FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
dw,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPSTR)error,
maxlength,
NULL);
#elif defined PLATFORM_POSIX
snprintf(error, maxlength, "%s", strerror(errno));
#endif
}
}
void LibrarySystem::CloseDirectory(IDirectory *dir)
{
delete dir;
}
ILibrary *LibrarySystem::OpenLibrary(const char *path, char *error, size_t maxlength)
{
LibraryHandle lib;
#if defined PLATFORM_WINDOWS
lib = LoadLibraryA(path);
if (!lib)
{
GetPlatformError(error, maxlength);
return false;
}
#elif defined PLATFORM_POSIX
lib = dlopen(path, RTLD_NOW);
if (!lib)
{
GetPlatformError(error, maxlength);
return false;
}
#endif
return new CLibrary(lib);
}
size_t LibrarySystem::PathFormat(char *buffer, size_t len, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
size_t mylen = vsnprintf(buffer, len, fmt, ap);
va_end(ap);
if (mylen >= len)
{
mylen = len - 1;
buffer[mylen] = '\0';
}
for (size_t i=0; i<mylen; i++)
{
if (buffer[i] == PLATFORM_SEP_ALTCHAR)
{
buffer[i] = PLATFORM_SEP_CHAR;
}
}
return mylen;
}
const char *LibrarySystem::GetFileExtension(const char *filename)
{
size_t end = strlen(filename) - 1;
for (size_t i = end; i >= 0; i--)
{
if (i > end)
{
break;
}
if (filename[i] == PLATFORM_SEP_CHAR || filename[i] == PLATFORM_SEP_ALTCHAR)
{
break;
}
if (filename[i] == '.' && i != end)
{
return &filename[++i];
}
}
return NULL;
}
bool LibrarySystem::CreateFolder(const char *path)
{
#if defined PLATFORM_WINDOWS
return (mkdir(path) != -1);
#elif defined PLATFORM_POSIX
return (mkdir(path, 0775) != -1);
#endif
}
size_t LibrarySystem::GetFileFromPath(char *buffer, size_t maxlength, const char *path)
{
size_t length = strlen(path);
for (size_t i = length - 1;
i >= 0 && i <= length - 1;
i--)
{
if (path[i] == '/'
#if defined PLATFORM_WINDOWS
|| path[i] == '\\'
#endif
)
{
return UTIL_Format(buffer, maxlength, "%s", &path[i+1]);
}
}
/* We scanned and found no path separator */
return UTIL_Format(buffer, maxlength, "%s", path);
}
bool LibrarySystem::FileTime(const char *path, FileTimeType type, time_t *pTime)
{
#ifdef PLATFORM_WINDOWS
struct _stat s;
if (_stat(path, &s) != 0)
#elif defined PLATFORM_POSIX
struct stat s;
if (stat(path, &s) != 0)
#endif
{
return false;
}
if (type == FileTime_LastAccess)
{
*pTime = s.st_atime;
}
else if (type == FileTime_Created)
{
*pTime = s.st_ctime;
}
else if (type == FileTime_LastChange)
{
*pTime = s.st_mtime;
}
return true;
}