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Made archiver list dynamic, in preparation for external archivers.

This commit is contained in:
Ryan C. Gordon 2012-03-25 15:59:29 -04:00
parent b3fbba7af0
commit 4cfd7277f3
2 changed files with 64 additions and 51 deletions
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110
src/physfs.c
View File

@ -47,55 +47,17 @@ typedef struct __PHYSFS_ERRSTATETYPE__
/* The various i/o drivers...some of these may not be compiled in. */
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_ZIP;
extern const PHYSFS_Archiver __PHYSFS_Archiver_ZIP;
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_LZMA;
extern const PHYSFS_Archiver __PHYSFS_Archiver_LZMA;
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_GRP;
extern const PHYSFS_Archiver __PHYSFS_Archiver_GRP;
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_QPAK;
extern const PHYSFS_Archiver __PHYSFS_Archiver_QPAK;
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_HOG;
extern const PHYSFS_Archiver __PHYSFS_Archiver_HOG;
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_MVL;
extern const PHYSFS_Archiver __PHYSFS_Archiver_MVL;
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_WAD;
extern const PHYSFS_Archiver __PHYSFS_Archiver_WAD;
extern const PHYSFS_Archiver __PHYSFS_Archiver_DIR;
extern const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_ISO9660;
extern const PHYSFS_Archiver __PHYSFS_Archiver_ISO9660;
extern const PHYSFS_Archiver __PHYSFS_Archiver_ZIP;
extern const PHYSFS_Archiver __PHYSFS_Archiver_LZMA;
extern const PHYSFS_Archiver __PHYSFS_Archiver_GRP;
extern const PHYSFS_Archiver __PHYSFS_Archiver_QPAK;
extern const PHYSFS_Archiver __PHYSFS_Archiver_HOG;
extern const PHYSFS_Archiver __PHYSFS_Archiver_MVL;
extern const PHYSFS_Archiver __PHYSFS_Archiver_WAD;
extern const PHYSFS_Archiver __PHYSFS_Archiver_DIR;
extern const PHYSFS_Archiver __PHYSFS_Archiver_ISO9660;
static const PHYSFS_ArchiveInfo *supported_types[] =
{
#if PHYSFS_SUPPORTS_ZIP
&__PHYSFS_ArchiveInfo_ZIP,
#endif
#if PHYSFS_SUPPORTS_7Z
&__PHYSFS_ArchiveInfo_LZMA,
#endif
#if PHYSFS_SUPPORTS_GRP
&__PHYSFS_ArchiveInfo_GRP,
#endif
#if PHYSFS_SUPPORTS_QPAK
&__PHYSFS_ArchiveInfo_QPAK,
#endif
#if PHYSFS_SUPPORTS_HOG
&__PHYSFS_ArchiveInfo_HOG,
#endif
#if PHYSFS_SUPPORTS_MVL
&__PHYSFS_ArchiveInfo_MVL,
#endif
#if PHYSFS_SUPPORTS_WAD
&__PHYSFS_ArchiveInfo_WAD,
#endif
#if PHYSFS_SUPPORTS_ISO9660
&__PHYSFS_ArchiveInfo_ISO9660,
#endif
NULL
};
static const PHYSFS_Archiver *archivers[] =
static const PHYSFS_Archiver *staticArchivers[] =
{
#if PHYSFS_SUPPORTS_ZIP
&__PHYSFS_Archiver_ZIP,
@ -137,6 +99,8 @@ static char *baseDir = NULL;
static char *userDir = NULL;
static char *prefDir = NULL;
static int allowSymLinks = 0;
static const PHYSFS_Archiver **archivers = NULL;
static const PHYSFS_ArchiveInfo **archiveInfo = NULL;
/* mutexes ... */
static void *errorLock = NULL; /* protects error message list. */
@ -1158,6 +1122,37 @@ initializeMutexes_failed:
static void setDefaultAllocator(void);
static int initStaticArchivers(void)
{
const size_t numStaticArchivers = __PHYSFS_ARRAYLEN(staticArchivers);
const size_t len = numStaticArchivers * sizeof (void *);
size_t i;
assert(numStaticArchivers > 0); /* seriously, none at all?! */
assert(staticArchivers[numStaticArchivers - 1] == NULL);
archiveInfo = (const PHYSFS_ArchiveInfo **) allocator.Malloc(len);
GOTO_IF_MACRO(!archiveInfo, PHYSFS_ERR_OUT_OF_MEMORY, failed);
archivers = (const PHYSFS_Archiver **) allocator.Malloc(len);
GOTO_IF_MACRO(!archivers, PHYSFS_ERR_OUT_OF_MEMORY, failed);
for (i = 0; i < numStaticArchivers - 1; i++)
archiveInfo[i] = staticArchivers[i]->info;
archiveInfo[numStaticArchivers - 1] = NULL;
memcpy(archivers, staticArchivers, len);
return 1;
failed:
allocator.Free(archiveInfo);
allocator.Free(archivers);
archivers = NULL;
archiveInfo = NULL;
return 0;
} /* initStaticArchivers */
int PHYSFS_init(const char *argv0)
{
BAIL_IF_MACRO(initialized, PHYSFS_ERR_IS_INITIALIZED, 0);
@ -1175,6 +1170,8 @@ int PHYSFS_init(const char *argv0)
baseDir = calculateBaseDir(argv0);
BAIL_IF_MACRO(!baseDir, ERRPASS, 0);
/* !!! FIXME: we have to clean up all the half-initialized state if something fails. */
userDir = __PHYSFS_platformCalcUserDir();
if (!userDir)
{
@ -1187,6 +1184,8 @@ int PHYSFS_init(const char *argv0)
assert(baseDir[strlen(baseDir) - 1] == __PHYSFS_platformDirSeparator);
assert(userDir[strlen(userDir) - 1] == __PHYSFS_platformDirSeparator);
BAIL_IF_MACRO(!initStaticArchivers(), ERRPASS, 0);
initialized = 1;
/* This makes sure that the error subsystem is initialized. */
@ -1271,6 +1270,18 @@ int PHYSFS_deinit(void)
prefDir = NULL;
} /* if */
if (archiveInfo != NULL)
{
allocator.Free(archiveInfo);
archiveInfo = NULL;
} /* if */
if (archivers != NULL)
{
allocator.Free(archivers);
archivers = NULL;
} /* if */
allowSymLinks = 0;
initialized = 0;
@ -1293,7 +1304,8 @@ int PHYSFS_isInit(void)
const PHYSFS_ArchiveInfo **PHYSFS_supportedArchiveTypes(void)
{
return supported_types;
BAIL_IF_MACRO(!initialized, PHYSFS_ERR_NOT_INITIALIZED, NULL);
return archiveInfo;
} /* PHYSFS_supportedArchiveTypes */

5
src/physfs.h
View File

@ -575,8 +575,9 @@ PHYSFS_DECL int PHYSFS_deinit(void);
* }
* \endcode
*
* The return values are pointers to static internal memory, and should
* be considered READ ONLY, and never freed.
* The return values are pointers to internal memory, and should
* be considered READ ONLY, and never freed. The returned values are
* valid until the next call to PHYSFS_deinit().
*
* \return READ ONLY Null-terminated array of READ ONLY structures.
*/