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Add a port allocator class

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Introduce a virPortAllocator for managing TCP port allocations.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange
2013-01-16 11:02:58 +00:00
parent bba93d40da
commit 9c9d4d32d3
8 changed files with 448 additions and 1 deletions
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tests/Makefile.am
+16 -1
View File
@@ -98,6 +98,7 @@ test_programs = virshtest sockettest \
virbitmaptest \
virlockspacetest \
virstringtest \
virportallocatortest \
sysinfotest \
$(NULL)
@@ -235,7 +236,9 @@ endif
EXTRA_DIST += $(test_scripts)
test_libraries = libshunload.la
test_libraries = libshunload.la \
libvirportallocatormock.la \
$(NULL)
if WITH_QEMU
test_libraries += libqemumonitortestutils.la
endif
@@ -565,6 +568,18 @@ virlockspacetest_SOURCES = \
virlockspacetest_CFLAGS = -Dabs_builddir="\"$(abs_builddir)\"" $(AM_CFLAGS)
virlockspacetest_LDADD = $(LDADDS)
virportallocatortest_SOURCES = \
virportallocatortest.c testutils.h testutils.c
virportallocatortest_CFLAGS = -Dabs_builddir="\"$(abs_builddir)\"" $(AM_CFLAGS)
virportallocatortest_LDADD = $(LDADDS)
libvirportallocatormock_la_SOURCES = \
virportallocatortest.c
libvirportallocatormock_la_CFLAGS = $(AM_CFLAGS) -DMOCK_HELPER=1
libvirportallocatormock_la_LDFLAGS = -module -avoid-version \
-rpath /evil/libtool/hack/to/force/shared/lib/creation
viruritest_SOURCES = \
viruritest.c testutils.h testutils.c
viruritest_CFLAGS = -Dabs_builddir="\"$(abs_builddir)\"" $(AM_CFLAGS)
tests/virportallocatortest.c
+194
View File
@@ -0,0 +1,194 @@
/*
* Copyright (C) 2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#ifdef MOCK_HELPER
# include "internal.h"
# include <sys/socket.h>
# include <errno.h>
# include <arpa/inet.h>
int bind(int sockfd ATTRIBUTE_UNUSED,
const struct sockaddr *addr,
socklen_t addrlen ATTRIBUTE_UNUSED)
{
struct sockaddr_in *saddr = (struct sockaddr_in *)addr;
if (saddr->sin_port == htons(5900) ||
saddr->sin_port == htons(5904) ||
saddr->sin_port == htons(5905) ||
saddr->sin_port == htons(5906)) {
errno = EADDRINUSE;
return -1;
}
return 0;
}
#else
# include <stdlib.h>
# include "testutils.h"
# include "virutil.h"
# include "virerror.h"
# include "viralloc.h"
# include "virlog.h"
# include "virportallocator.h"
# define VIR_FROM_THIS VIR_FROM_RPC
static int testAllocAll(const void *args ATTRIBUTE_UNUSED)
{
virPortAllocatorPtr alloc = virPortAllocatorNew(5900, 5910);
int ret = -1;
unsigned short p1, p2, p3, p4, p5, p6, p7;
if (virPortAllocatorAcquire(alloc, &p1) < 0)
goto cleanup;
if (p1 != 5901) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5901, got %d", p1);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p2) < 0)
goto cleanup;
if (p2 != 5902) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5902, got %d", p2);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p3) < 0)
goto cleanup;
if (p3 != 5903) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5903, got %d", p3);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p4) < 0)
goto cleanup;
if (p4 != 5907) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5907, got %d", p4);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p5) < 0)
goto cleanup;
if (p5 != 5908) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5908, got %d", p5);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p6) < 0)
goto cleanup;
if (p6 != 5909) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5909, got %d", p6);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p7) < 0)
goto cleanup;
if (p7 != 0) {
if (virTestGetDebug())
fprintf(stderr, "Expected 0, got %d", p7);
goto cleanup;
}
ret = 0;
cleanup:
virObjectUnref(alloc);
return ret;
}
static int testAllocReuse(const void *args ATTRIBUTE_UNUSED)
{
virPortAllocatorPtr alloc = virPortAllocatorNew(5900, 5910);
int ret = -1;
unsigned short p1, p2, p3, p4;
if (virPortAllocatorAcquire(alloc, &p1) < 0)
goto cleanup;
if (p1 != 5901) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5901, got %d", p1);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p2) < 0)
goto cleanup;
if (p2 != 5902) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5902, got %d", p2);
goto cleanup;
}
if (virPortAllocatorAcquire(alloc, &p3) < 0)
goto cleanup;
if (p3 != 5903) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5903, got %d", p3);
goto cleanup;
}
if (virPortAllocatorRelease(alloc, p2) < 0)
goto cleanup;
if (virPortAllocatorAcquire(alloc, &p4) < 0)
goto cleanup;
if (p4 != 5902) {
if (virTestGetDebug())
fprintf(stderr, "Expected 5902, got %d", p4);
goto cleanup;
}
ret = 0;
cleanup:
virObjectUnref(alloc);
return ret;
}
static int
mymain(void)
{
int ret = 0;
if (virtTestRun("Test alloc all", 1, testAllocAll, NULL) < 0)
ret = -1;
if (virtTestRun("Test alloc reuse", 1, testAllocReuse, NULL) < 0)
ret = -1;
return ret==0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/libvirportallocatormock.so")
#endif