dvander@141: #include <stdio.h>
dvander@141: #include "LibrarySys.h"
dvander@141: 
dvander@141: LibrarySystem g_LibSys;
dvander@141: 
dvander@141: CLibrary::~CLibrary()
dvander@141: {
dvander@141: 	if (m_lib)
dvander@141: 	{
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 		FreeLibrary(m_lib);
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 		dlclose(m_lib);
dvander@141: #endif
dvander@141: 		m_lib = NULL;
dvander@141: 	}
dvander@141: }
dvander@141: 
dvander@141: CLibrary::CLibrary(LibraryHandle me)
dvander@141: {
dvander@141: 	m_lib = me;
dvander@141: }
dvander@141: 
dvander@141: void CLibrary::CloseLibrary()
dvander@141: {
dvander@141: 	delete this;
dvander@141: }
dvander@141: 
dvander@141: void *CLibrary::GetSymbolAddress(const char *symname)
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	return GetProcAddress(m_lib, symname);
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 	return dlsym(m_lib, symname);
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: 
dvander@141: /********************
dvander@141:  ** Directory Code **
dvander@141:  ********************/
dvander@141: 
dvander@141: 
dvander@141: CDirectory::CDirectory(const char *path)
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	char newpath[PLATFORM_MAX_PATH];
dvander@141: 	snprintf(newpath, sizeof(newpath), "%s\\*.*", path);
dvander@141: 	m_dir = FindFirstFileA(newpath, &m_fd);
dvander@141: 	if (!IsValid())
dvander@141: 	{
dvander@141: 		m_fd.cFileName[0] = '\0';
dvander@141: 	}
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 	m_dir = opendir(path);
dvander@141: 	if (IsValid())
dvander@141: 	{
dvander@141: 		/* :TODO: we need to read past "." and ".."! */
dvander@141: 		ep = readdir(dp);
dvander@141: 		snprintf(m_origpath, PLATFORM_MAX_PATH, "%s", path);
dvander@141: 	} else {
dvander@141: 		ep = NULL;
dvander@141: 	}
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: CDirectory::~CDirectory()
dvander@141: {
dvander@141: 	if (IsValid())
dvander@141: 	{
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 		FindClose(m_dir);
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 		closedir(m_dir);
dvander@141: #endif
dvander@141: 	}
dvander@141: }
dvander@141: 
dvander@141: void CDirectory::NextEntry()
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	if (FindNextFile(m_dir, &m_fd) == 0)
dvander@141: 	{
dvander@141: 		FindClose(m_dir);
dvander@141: 		m_dir = INVALID_HANDLE_VALUE;
dvander@141: 	}
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 	if ((ep=readdir(m_dir) == NULL)
dvander@141: 	{
dvander@141: 		closedir(m_dir);
dvander@141: 		m_dir = NULL;
dvander@141: 	}
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: bool CDirectory::IsEntryDirectory()
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	return ((m_fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY);
dvander@141: #else if defined PLATFORM_LINUX
dvander@141: 	char temppath[PLATFORM_MAX_PATH];
dvander@141: 	snprintf(temppath, sizeof(temppath), "%s/%s", m_origpath, GetEntryName());
dvander@141: 	return g_LibrarySys.IsPathDirectory(temppath);
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: bool CDirectory::IsEntryFile()
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	return !(m_fd.dwFileAttributes & (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_DEVICE));
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 	char temppath[PLATFORM_MAX_PATH];
dvander@141: 	snprintf(temppath, sizeof(temppath), "%s/%s", m_origpath, GetEntryName());
dvander@141: 	return g_LibrarySys.IsPathFile(temppath);
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: const char *CDirectory::GetEntryName()
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	return m_fd.cFileName;
dvander@141: #else if defined PLATFORM_LINUX
dvander@141: 	return ep ? ep->d_name : "";
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: bool CDirectory::MoreFiles()
dvander@141: {
dvander@141: 	return IsValid();
dvander@141: }
dvander@141: 
dvander@141: bool CDirectory::IsValid()
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	return (m_dir != INVALID_HANDLE_VALUE);
dvander@141: #else if defined PLATFORM_LINUX
dvander@141: 	return (m_dir != NULL);
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: 
dvander@141: /*************************
dvander@141:  ** Library System Code **
dvander@141:  *************************/
dvander@141: 
dvander@141: 
dvander@141: bool LibrarySystem::PathExists(const char *path)
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	DWORD attr = GetFileAttributesA(path);
dvander@141: 
dvander@141: 	return (attr != INVALID_FILE_ATTRIBUTES);
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 	struct stat s;
dvander@141: 
dvander@141: 	return (stat(path, &s) == 0);
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: bool LibrarySystem::IsPathFile(const char *path)
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	DWORD attr = GetFileAttributes(path);
dvander@141: 
dvander@141: 	if (attr == INVALID_FILE_ATTRIBUTES)
dvander@141: 	{
dvander@141: 		return false;
dvander@141: 	}
dvander@141: 
dvander@141: 	if (attr & (FILE_ATTRIBUTE_DIRECTORY|FILE_ATTRIBUTE_DEVICE))
dvander@141: 	{
dvander@141: 		return false;
dvander@141: 	}
dvander@141: 
dvander@141: 	return true;
dvander@141: #else if defined PLATFORM_LINUX
dvander@141: 	struct stat s;
dvander@141: 
dvander@141: 	if (stat(path, &s) != 0)
dvander@141: 	{
dvander@141: 		return false;
dvander@141: 	}
dvander@141: 
dvander@141: 	return S_ISREG(s.st_mode) ? true : false;
dvander@141: #endif
dvander@141: }
dvander@141: 
dvander@141: bool LibrarySystem::IsPathDirectory(const char *path)
dvander@141: {
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	DWORD attr = GetFileAttributes(path);
dvander@141: 
dvander@141: 	if (attr == INVALID_FILE_ATTRIBUTES)
dvander@141: 	{
dvander@141: 		return false;
dvander@141: 	}
dvander@141: 
dvander@141: 	if (attr & FILE_ATTRIBUTE_DIRECTORY)
dvander@141: 	{
dvander@141: 		return true;
dvander@141: 	}
dvander@141: 
dvander@141: #else if defined PLATFORM_LINUX
dvander@141: 	struct stat s;
dvander@141: 
dvander@141: 	if (stat(path, &s) != 0)
dvander@141: 	{
dvander@141: 		return false;
dvander@141: 	}
dvander@141: 
dvander@141: 	if (S_ISDIR(s.st_mode))
dvander@141: 	{
dvander@141: 		return true;
dvander@141: 	}
dvander@141: #endif
dvander@141: 
dvander@141: 	return false;
dvander@141: }
dvander@141: 
dvander@141: IDirectory *LibrarySystem::OpenDirectory(const char *path)
dvander@141: {
dvander@141: 	CDirectory *dir = new CDirectory(path);
dvander@141: 
dvander@141: 	if (!dir->IsValid())
dvander@141: 	{
dvander@141: 		delete dir;
dvander@141: 		return NULL;
dvander@141: 	}
dvander@141: 
dvander@141: 	return dir;
dvander@141: }
dvander@141: 
dvander@141: void LibrarySystem::GetPlatformError(char *error, size_t err_max)
dvander@141: {
dvander@141: 	if (error && err_max)
dvander@141: 	{
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 		DWORD dw = GetLastError();
dvander@141: 		FormatMessageA(
dvander@141: 			FORMAT_MESSAGE_FROM_SYSTEM,
dvander@141: 			NULL,
dvander@141: 			dw,
dvander@141: 			MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
dvander@141: 			(LPSTR)error,
dvander@141: 			err_max,
dvander@141: 			NULL);
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 		snprintf(error, err_max, "%s", strerror(errno));
dvander@141: #endif
dvander@141: 	}
dvander@141: }
dvander@141: 
dvander@141: void LibrarySystem::CloseDirectory(IDirectory *dir)
dvander@141: {
dvander@141: 	delete dir;
dvander@141: }
dvander@141: 
dvander@141: ILibrary *LibrarySystem::OpenLibrary(const char *path, char *error, size_t err_max)
dvander@141: {
dvander@141: 	LibraryHandle lib;
dvander@141: #if defined PLATFORM_WINDOWS
dvander@141: 	lib = LoadLibraryA(path);
dvander@141: 	if (!lib)
dvander@141: 	{
dvander@141: 		GetPlatformError(error, err_max);
dvander@141: 		return false;
dvander@141: 	}
dvander@141: #else if defined PLATFORM_POSIX
dvander@141: 	lib = dlopen(path, RTLD_NOW);
dvander@141: 	if (!lib)
dvander@141: 	{
dvander@141: 		GetPlatformError(error, err_max);
dvander@141: 		return false;
dvander@141: 	}
dvander@141: #endif
dvander@141: 
dvander@141: 	return new CLibrary(lib);
dvander@141: }