diff options
Diffstat (limited to 'libopts/restore.c')
| -rw-r--r-- | libopts/restore.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/libopts/restore.c b/libopts/restore.c deleted file mode 100644 index 91eac08..0000000 --- a/libopts/restore.c +++ /dev/null @@ -1,250 +0,0 @@ - -/* - * restore.c $Id: restore.c,v 4.10 2007/02/04 17:44:12 bkorb Exp $ - * Time-stamp: "2007-01-13 14:13:17 bkorb" - * - * This module's routines will save the current option state to memory - * and restore it. If saved prior to the initial optionProcess call, - * then the initial state will be restored. - */ - -/* - * Automated Options copyright 1992-2007 Bruce Korb - * - * Automated Options is free software. - * You may redistribute it and/or modify it under the terms of the - * GNU General Public License, as published by the Free Software - * Foundation; either version 2, or (at your option) any later version. - * - * Automated Options 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 Automated Options. See the file "COPYING". If not, - * write to: The Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - * As a special exception, Bruce Korb gives permission for additional - * uses of the text contained in his release of AutoOpts. - * - * The exception is that, if you link the AutoOpts library with other - * files to produce an executable, this does not by itself cause the - * resulting executable to be covered by the GNU General Public License. - * Your use of that executable is in no way restricted on account of - * linking the AutoOpts library code into it. - * - * This exception does not however invalidate any other reasons why - * the executable file might be covered by the GNU General Public License. - * - * This exception applies only to the code released by Bruce Korb under - * the name AutoOpts. If you copy code from other sources under the - * General Public License into a copy of AutoOpts, as the General Public - * License permits, the exception does not apply to the code that you add - * in this way. To avoid misleading anyone as to the status of such - * modified files, you must delete this exception notice from them. - * - * If you write modifications of your own for AutoOpts, it is your choice - * whether to permit this exception to apply to your modifications. - * If you do not wish that, delete this exception notice. - */ - -/* - * optionFixupSavedOpts Really, it just wipes out option state for - * options that are troublesome to copy. viz., stacked strings and - * hierarcicaly valued option args. We do duplicate string args that - * have been marked as allocated though. - */ -static void -fixupSavedOptionArgs(tOptions* pOpts) -{ - tOptions* p = pOpts->pSavedState; - tOptDesc* pOD = pOpts->pOptDesc; - int ct = pOpts->optCt; - - /* - * Make sure that allocated stuff is only referenced in the - * archived copy of the data. - */ - for (; ct-- > 0; pOD++) { - switch (OPTST_GET_ARGTYPE(pOD->fOptState)) { - case OPARG_TYPE_STRING: - if (pOD->fOptState & OPTST_STACKED) { - tOptDesc* q = p->pOptDesc + (pOD - pOpts->pOptDesc); - q->optCookie = NULL; - } - if (pOD->fOptState & OPTST_ALLOC_ARG) { - tOptDesc* q = p->pOptDesc + (pOD - pOpts->pOptDesc); - AGDUPSTR(q->optArg.argString, pOD->optArg.argString, "arg"); - } - break; - - case OPARG_TYPE_HIERARCHY: - { - tOptDesc* q = p->pOptDesc + (pOD - pOpts->pOptDesc); - q->optCookie = NULL; - } - } - } -} - -/*=export_func optionSaveState - * - * what: saves the option state to memory - * arg: tOptions*, pOpts, program options descriptor - * - * doc: - * - * This routine will allocate enough memory to save the current option - * processing state. If this routine has been called before, that memory - * will be reused. You may only save one copy of the option state. This - * routine may be called before optionProcess(3AO). If you do call it - * before the first call to optionProcess, then you may also change the - * contents of argc/argv after you call optionRestore(3AO) - * - * In fact, more strongly put: it is safest to only use this function - * before having processed any options. In particular, the saving and - * restoring of stacked string arguments and hierarchical values is - * disabled. The values are not saved. - * - * err: If it fails to allocate the memory, - * it will print a message to stderr and exit. - * Otherwise, it will always succeed. -=*/ -void -optionSaveState(tOptions* pOpts) -{ - tOptions* p = (tOptions*)pOpts->pSavedState; - - if (p == NULL) { - size_t sz = sizeof( *pOpts ) + (pOpts->optCt * sizeof( tOptDesc )); - p = AGALOC( sz, "saved option state" ); - if (p == NULL) { - tCC* pzName = pOpts->pzProgName; - if (pzName == NULL) { - pzName = pOpts->pzPROGNAME; - if (pzName == NULL) - pzName = zNil; - } - fprintf( stderr, zCantSave, pzName, sz ); - exit( EXIT_FAILURE ); - } - - pOpts->pSavedState = p; - } - - memcpy( p, pOpts, sizeof( *p )); - memcpy( p + 1, pOpts->pOptDesc, p->optCt * sizeof( tOptDesc )); - - fixupSavedOptionArgs(pOpts); -} - - -/*=export_func optionRestore - * - * what: restore option state from memory copy - * arg: tOptions*, pOpts, program options descriptor - * - * doc: Copy back the option state from saved memory. - * The allocated memory is left intact, so this routine can be - * called repeatedly without having to call optionSaveState again. - * If you are restoring a state that was saved before the first call - * to optionProcess(3AO), then you may change the contents of the - * argc/argv parameters to optionProcess. - * - * err: If you have not called @code{optionSaveState} before, a diagnostic is - * printed to @code{stderr} and exit is called. -=*/ -void -optionRestore( tOptions* pOpts ) -{ - tOptions* p = (tOptions*)pOpts->pSavedState; - - if (p == NULL) { - tCC* pzName = pOpts->pzProgName; - if (pzName == NULL) { - pzName = pOpts->pzPROGNAME; - if (pzName == NULL) - pzName = zNil; - } - fprintf( stderr, zNoState, pzName ); - exit( EXIT_FAILURE ); - } - - pOpts->pSavedState = NULL; - optionFree(pOpts); - - memcpy( pOpts, p, sizeof( *p )); - memcpy( pOpts->pOptDesc, p+1, p->optCt * sizeof( tOptDesc )); - pOpts->pSavedState = p; - - fixupSavedOptionArgs(pOpts); -} - -/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */ - -/*=export_func optionFree - * - * what: free allocated option processing memory - * arg: tOptions*, pOpts, program options descriptor - * - * doc: AutoOpts sometimes allocates memory and puts pointers to it in the - * option state structures. This routine deallocates all such memory. - * - * err: As long as memory has not been corrupted, - * this routine is always successful. -=*/ -void -optionFree( tOptions* pOpts ) -{ - free_saved_state: - { - tOptDesc* p = pOpts->pOptDesc; - int ct = pOpts->optCt; - do { - if (p->fOptState & OPTST_ALLOC_ARG) { - AGFREE(p->optArg.argString); - p->optArg.argString = NULL; - p->fOptState &= ~OPTST_ALLOC_ARG; - } - - switch (OPTST_GET_ARGTYPE(p->fOptState)) { - case OPARG_TYPE_STRING: -#ifdef WITH_LIBREGEX - if ( (p->fOptState & OPTST_STACKED) - && (p->optCookie != NULL)) { - p->optArg.argString = ".*"; - optionUnstackArg(pOpts, p); - } -#else - /* leak memory */; -#endif - break; - - case OPARG_TYPE_HIERARCHY: - if (p->optCookie != NULL) - unloadNestedArglist(p->optCookie); - break; - } - - p->optCookie = NULL; - } while (p++, --ct > 0); - } - if (pOpts->pSavedState != NULL) { - tOptions * p = (tOptions*)pOpts->pSavedState; - memcpy( pOpts, p, sizeof( *p )); - memcpy( pOpts->pOptDesc, p+1, p->optCt * sizeof( tOptDesc )); - AGFREE( pOpts->pSavedState ); - pOpts->pSavedState = NULL; - goto free_saved_state; - } -} -/* - * Local Variables: - * mode: C - * c-file-style: "stroustrup" - * indent-tabs-mode: nil - * End: - * end of autoopts/restore.c */ |
