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Code Issues Releases Wiki Activity

add a function to initialize a block of mutexes, and to destroy them.

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This commit is contained in:
Michael Graff
1999-09-24 23:26:23 +00:00
parent e141888b93
commit 9c91aa2641
4 changed files with 134 additions and 5 deletions
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12
lib/isc/Makefile.in
View File

@@ -43,16 +43,20 @@ PTHREADOBJS = pthreads/condition.@O@
OBJS = @ISC_EXTRA_OBJS@ \
assertions.@O@ base64.@O@ bitstring.@O@ buffer.@O@ \
bufferlist.@O@ error.@O@ event.@O@ heap.@O@ lex.@O@ lib.@O@ \
log.@O@ mem.@O@ result.@O@ rwlock.@O@ serial.@O@ sockaddr.@O@ \
str.@O@ symtab.@O@ task.@O@ timer.@O@ version.@O@ \
log.@O@ mem.@O@ mutexblock.@O@ result.@O@ rwlock.@O@ \
serial.@O@ \
sockaddr.@O@ str.@O@ symtab.@O@ task.@O@ timer.@O@ \
version.@O@ \
${UNIXOBJS} ${NLSOBJS} ${PTHREADOBJS}
# Alphabetically
SRCS = @ISC_EXTRA_SRCS@ \
assertions.c base64.c bitstring.c buffer.c \
bufferlist.c error.c event.c heap.c lex.c lib.c \
log.c mem.c result.c rwlock.c serial.c sockaddr.c \
str.c symtab.c task.c timer.c version.c
log.c mem.c mutexblock.c result.c rwlock.c \
serial.c \
sockaddr.c str.c symtab.c task.c timer.c \
version.c
LIBS = @LIBS@

3
lib/isc/include/isc/Makefile.in
View File

@@ -22,7 +22,8 @@ top_srcdir = @top_srcdir@
HEADERS = assertions.h base64.h boolean.h buffer.h bufferlist.h \
error.h event.h \
eventclass.h heap.h int.h interfaceiter.h lang.h lex.h lib.h \
list.h mem.h msgcat.h netaddr.h rbtgen.h region.h result.h \
list.h mem.h msgcat.h mutexblock.h netaddr.h rbtgen.h \
region.h result.h \
resultclass.h rwlock.h serial.h sockaddr.h socket.h str.h \
symtab.h task.h timer.h types.h

67
lib/isc/include/isc/mutexblock.h Normal file
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@@ -0,0 +1,67 @@
/*
* Copyright (C) 1999 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#ifndef ISC_MUTEXBLOCK_H
#define ISC_MUTEXBLOCK_H 1
#include <isc/lang.h>
#include <isc/mutex.h>
#include <isc/result.h>
ISC_LANG_BEGINDECLS
isc_result_t
isc_mutex_initblock(isc_mutex_t *block, unsigned int count);
/*
* Initialize a block of locks. If an error occurs all initialized locks
* will be destroyed, if possible.
*
* Requires:
*
* block != NULL
*
* count > 0
*
* Returns:
*
* Any code isc_mutex_init() can return is a valid return for this
* function.
*/
isc_result_t
isc_mutex_destroyblock(isc_mutex_t *block, unsigned int count);
/*
* Destroy a block of locks.
*
* Requires:
*
* block != NULL
*
* count > 0
*
* Each lock in the block be initialized via isc_mutex_init() or
* the whole block was initialized via isc_mutex_initblock().
*
* Returns:
*
* Any code isc_mutex_init() can return is a valid return for this
* function.
*/
ISC_LANG_ENDDECLS
#endif /* ISC_MUTEXBLOCK_H */

57
lib/isc/mutexblock.c Normal file
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@@ -0,0 +1,57 @@
/*
* Copyright (C) 1999 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#include <config.h>
#include <isc/mutex.h>
#include <isc/mutexblock.h>
isc_result_t
isc_mutex_initblock(isc_mutex_t *block, unsigned int count)
{
isc_result_t result;
unsigned int i;
for (i = 0 ; i < count ; i++) {
result = isc_mutex_init(&block[i]);
if (result != ISC_R_SUCCESS) {
i--;
while (i > 0) {
isc_mutex_destroy(&block[i]);
i--;
}
return (result);
}
}
return (ISC_R_SUCCESS);
}
isc_result_t
isc_mutex_destroyblock(isc_mutex_t *block, unsigned int count)
{
isc_result_t result;
unsigned int i;
for (i = 0 ; i < count ; i++) {
result = isc_mutex_destroy(&block[i]);
if (result != ISC_R_SUCCESS)
return (result);
}
return (ISC_R_SUCCESS);
}