--- /dev/null
+#
+# OpenSSL/crypto/async/Makefile
+#
+
+DIR= async
+TOP= ../..
+CC= cc
+INCLUDES=
+CFLAG=-g
+MAKEFILE= Makefile
+AR= ar r
+
+CFLAGS= $(INCLUDES) $(CFLAG)
+
+GENERAL=Makefile
+TEST=
+APPS=
+
+LIB=$(TOP)/libcrypto.a
+LIBSRC=async.c
+LIBOBJ=async.o
+
+SRC= $(LIBSRC)
+
+EXHEADER= async.h
+HEADER= $(EXHEADER)
+
+ALL= $(GENERAL) $(SRC) $(HEADER)
+
+top:
+ (cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all)
+
+all: lib
+
+lib: $(LIBOBJ)
+ $(AR) $(LIB) $(LIBOBJ)
+ $(RANLIB) $(LIB) || echo Never mind.
+ @touch lib
+
+files:
+ $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO
+
+links:
+ @$(PERL) $(TOP)/util/mklink.pl ../../include/openssl $(EXHEADER)
+ @$(PERL) $(TOP)/util/mklink.pl ../../test $(TEST)
+ @$(PERL) $(TOP)/util/mklink.pl ../../apps $(APPS)
+
+install:
+ @[ -n "$(INSTALLTOP)" ] # should be set by top Makefile...
+ @headerlist="$(EXHEADER)"; for i in $$headerlist ; \
+ do \
+ (cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \
+ chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \
+ done;
+
+tags:
+ ctags $(SRC)
+
+tests:
+
+lint:
+ lint -DLINT $(INCLUDES) $(SRC)>fluff
+
+update: depend
+
+depend:
+ @[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile...
+ $(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC)
+
+dclean:
+ $(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new
+ mv -f Makefile.new $(MAKEFILE)
+
+clean:
+ rm -f *.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+async.o: ../../include/openssl/async.h ../../include/openssl/crypto.h
+async.o: ../../include/openssl/e_os2.h ../../include/openssl/opensslconf.h
+async.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
+async.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
+async.o: ../../include/openssl/symhacks.h async.c
--- /dev/null
+/* crypto/async/async.c */
+/*
+ * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include <openssl/crypto.h>
+#include <openssl/async.h>
+#include <ucontext.h>
+#include <string.h>
+
+#define ASYNC_JOB_RUNNING 0
+#define ASYNC_JOB_PAUSING 1
+#define ASYNC_JOB_PAUSED 2
+#define ASYNC_JOB_STOPPING 3
+
+
+typedef struct async_ctx_st {
+ ucontext_t dispatcher;
+ ASYNC_JOB *currjob;
+} ASYNC_CTX;
+
+__thread ASYNC_CTX *ctx;
+
+struct async_job_st {
+ ucontext_t fibrectx;
+ int (*func)(void *);
+ void *funcargs;
+ int ret;
+ int status;
+};
+
+
+static ASYNC_CTX *ASYNC_CTX_new(void)
+{
+ ASYNC_CTX *nctx = NULL;
+
+ if(!(nctx = OPENSSL_malloc(sizeof (ASYNC_CTX)))) {
+ /* Error here */
+ goto err;
+ }
+
+ nctx->currjob = NULL;
+ ctx = nctx;
+
+ return nctx;
+err:
+ if(nctx) {
+ OPENSSL_free(nctx);
+ }
+
+ return NULL;
+}
+
+static int ASYNC_CTX_free(void)
+{
+ if(ctx) {
+ OPENSSL_free(ctx);
+ }
+
+ ctx = NULL;
+
+ return 1;
+}
+
+static ASYNC_JOB *ASYNC_JOB_new(void)
+{
+ ASYNC_JOB *job = NULL;
+ void *stack = NULL;
+
+ if(!(job = OPENSSL_malloc(sizeof (ASYNC_JOB)))) {
+ goto err;
+ }
+
+ if(!(stack = OPENSSL_malloc(SIGSTKSZ))) {
+ goto err;
+ }
+ if(getcontext(&job->fibrectx))
+ goto err;
+ job->fibrectx.uc_stack.ss_sp = stack;
+ job->fibrectx.uc_stack.ss_size = SIGSTKSZ;
+ job->fibrectx.uc_link = NULL;
+ job->status = ASYNC_JOB_RUNNING;
+ job->funcargs = NULL;
+
+ return job;
+err:
+ if(job) {
+ if(stack)
+ OPENSSL_free(stack);
+ OPENSSL_free(job);
+ }
+ return NULL;
+}
+
+static void ASYNC_JOB_free(ASYNC_JOB *job)
+{
+ if(job) {
+ if(job->funcargs)
+ OPENSSL_free(job->funcargs);
+ if(job->fibrectx.uc_stack.ss_sp)
+ OPENSSL_free(job->fibrectx.uc_stack.ss_sp);
+ OPENSSL_free(job);
+ }
+}
+
+static void ASYNC_start_func(void)
+{
+ ASYNC_JOB *job;
+
+ /* Run the job */
+ job = ctx->currjob;
+ job->ret = job->func(job->funcargs);
+
+ /* Stop the job */
+ job->status = ASYNC_JOB_STOPPING;
+ setcontext(&ctx->dispatcher);
+
+ /*
+ * Should not happen. Getting here will close the thread...can't do much
+ * about it
+ */
+}
+
+int ASYNC_start_job(ASYNC_JOB **job, int *ret, int (*func)(void *),
+ void *args, size_t size)
+{
+ if(ctx || !ASYNC_CTX_new()) {
+ return ASYNC_ERR;
+ }
+
+ if(*job) {
+ ctx->currjob = *job;
+ }
+
+ getcontext(&ctx->dispatcher);
+
+ if(ctx->currjob) {
+ if(ctx->currjob->status == ASYNC_JOB_STOPPING) {
+ *ret = ctx->currjob->ret;
+ ASYNC_JOB_free(ctx->currjob);
+ ctx->currjob = NULL;
+ ASYNC_CTX_free();
+ return ASYNC_FINISH;
+ }
+
+ if(ctx->currjob->status == ASYNC_JOB_PAUSING) {
+ *job = ctx->currjob;
+ ctx->currjob->status = ASYNC_JOB_PAUSED;
+ ASYNC_CTX_free();
+ return ASYNC_PAUSE;
+ }
+
+ if(ctx->currjob->status == ASYNC_JOB_PAUSED) {
+ ctx->currjob = *job;
+ /* Resume previous job */
+ setcontext(&ctx->currjob->fibrectx);
+ /* Does not return */
+ }
+
+ /* Should not happen */
+ ASYNC_JOB_free(ctx->currjob);
+ ctx->currjob = NULL;
+ ASYNC_CTX_free();
+ return ASYNC_ERR;
+ }
+
+ /* Start a new job */
+ if(!(ctx->currjob = ASYNC_JOB_new())) {
+ ASYNC_CTX_free();
+ return ASYNC_ERR;
+ }
+
+ if(args != NULL) {
+ ctx->currjob->funcargs = OPENSSL_malloc(size);
+ if(!ctx->currjob->funcargs) {
+ ASYNC_JOB_free(ctx->currjob);
+ ctx->currjob = NULL;
+ ASYNC_CTX_free();
+ return ASYNC_ERR;
+ }
+ memcpy(ctx->currjob->funcargs, args, size);
+ } else {
+ ctx->currjob->funcargs = NULL;
+ }
+
+ ctx->currjob->func = func;
+ makecontext(&ctx->currjob->fibrectx, ASYNC_start_func, 0);
+ setcontext(&ctx->currjob->fibrectx);
+
+ /* Does not return except in error */
+ ASYNC_JOB_free(ctx->currjob);
+ ctx->currjob = NULL;
+ ASYNC_CTX_free();
+ return ASYNC_ERR;
+}
+
+
+int ASYNC_pause_job(void)
+{
+ ASYNC_JOB *job;
+
+ if(!ctx || !ctx->currjob)
+ return 0;
+
+ job = ctx->currjob;
+ job->status = ASYNC_JOB_PAUSING;
+
+ if(swapcontext(&job->fibrectx, &ctx->dispatcher)) {
+ /* Error */
+ return 0;
+ }
+
+ return 1;
+}
+
+int ASYNC_in_job(void)
+{
+ if(ctx)
+ return 1;
+
+ return 0;
+}
+
+int ASYNC_job_is_waiting(ASYNC_JOB *job)
+{
+ return job->status == ASYNC_JOB_PAUSED;
+}
--- /dev/null
+/* include/openssl/async.h */
+/*
+ * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#ifndef HEADER_ASYNC_H
+# define HEADER_ASYNC_H
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+typedef struct async_job_st ASYNC_JOB;
+
+#define ASYNC_ERR 0
+#define ASYNC_PAUSE 1
+#define ASYNC_FINISH 2
+
+int ASYNC_start_job(ASYNC_JOB **job, int *ret, int (*func)(void *),
+ void *args, size_t size);
+int ASYNC_pause_job(void);
+int ASYNC_in_job(void);
+int ASYNC_job_is_waiting(ASYNC_JOB *job);
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif
projects / openssl.git / commitdiff