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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging] tools/libxenevtchn: switch to standard xen coding style
commit 461144c9ad48dce1c1220c95c8706e3fa20f8677
Author: Juergen Gross <jgross@xxxxxxxx>
AuthorDate: Fri Jan 15 09:29:34 2021 +0100
Commit: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Fri Jan 15 11:44:47 2021 +0000
tools/libxenevtchn: switch to standard xen coding style
There is a mixture of different styles in libxenevtchn. Use the
standard xen style only.
No functional change.
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
tools/libs/evtchn/core.c | 24 ++++++-----
tools/libs/evtchn/freebsd.c | 25 ++++++++----
tools/libs/evtchn/linux.c | 12 ++++--
tools/libs/evtchn/minios.c | 98 ++++++++++++++++++++++++++++++++-------------
tools/libs/evtchn/netbsd.c | 22 ++++++----
tools/libs/evtchn/solaris.c | 12 ++++--
6 files changed, 135 insertions(+), 58 deletions(-)
diff --git a/tools/libs/evtchn/core.c b/tools/libs/evtchn/core.c
index aff6ecfaa0..8090d0ce87 100644
--- a/tools/libs/evtchn/core.c
+++ b/tools/libs/evtchn/core.c
@@ -18,10 +18,11 @@
#include "private.h"
-static int all_restrict_cb(Xentoolcore__Active_Handle *ah, domid_t domid) {
+static int all_restrict_cb(Xentoolcore__Active_Handle *ah, domid_t domid)
+{
xenevtchn_handle *xce = CONTAINER_OF(ah, *xce, tc_ah);
- if (xce->fd < 0)
+ if ( xce->fd < 0 )
/* just in case */
return 0;
@@ -33,7 +34,8 @@ xenevtchn_handle *xenevtchn_open(xentoollog_logger *logger,
unsigned open_flags)
xenevtchn_handle *xce = malloc(sizeof(*xce));
int rc;
- if (!xce) return NULL;
+ if ( !xce )
+ return NULL;
xce->fd = -1;
xce->logger = logger;
@@ -42,23 +44,26 @@ xenevtchn_handle *xenevtchn_open(xentoollog_logger *logger,
unsigned open_flags)
xce->tc_ah.restrict_callback = all_restrict_cb;
xentoolcore__register_active_handle(&xce->tc_ah);
- if (!xce->logger) {
- xce->logger = xce->logger_tofree =
- (xentoollog_logger*)
+ if ( !xce->logger )
+ {
+ xce->logger = xce->logger_tofree = (xentoollog_logger *)
xtl_createlogger_stdiostream(stderr, XTL_PROGRESS, 0);
- if (!xce->logger) goto err;
+ if ( !xce->logger )
+ goto err;
}
rc = osdep_evtchn_open(xce);
- if ( rc < 0 ) goto err;
+ if ( rc < 0 )
+ goto err;
return xce;
-err:
+ err:
xentoolcore__deregister_active_handle(&xce->tc_ah);
osdep_evtchn_close(xce);
xtl_logger_destroy(xce->logger_tofree);
free(xce);
+
return NULL;
}
@@ -73,6 +78,7 @@ int xenevtchn_close(xenevtchn_handle *xce)
rc = osdep_evtchn_close(xce);
xtl_logger_destroy(xce->logger_tofree);
free(xce);
+
return rc;
}
diff --git a/tools/libs/evtchn/freebsd.c b/tools/libs/evtchn/freebsd.c
index 6564ed4c44..554af122c8 100644
--- a/tools/libs/evtchn/freebsd.c
+++ b/tools/libs/evtchn/freebsd.c
@@ -34,9 +34,12 @@
int osdep_evtchn_open(xenevtchn_handle *xce)
{
int fd = open(EVTCHN_DEV, O_RDWR|O_CLOEXEC);
+
if ( fd == -1 )
return -1;
+
xce->fd = fd;
+
return 0;
}
@@ -51,6 +54,7 @@ int osdep_evtchn_close(xenevtchn_handle *xce)
int osdep_evtchn_restrict(xenevtchn_handle *xce, domid_t domid)
{
errno = -EOPNOTSUPP;
+
return -1;
}
@@ -69,7 +73,8 @@ int xenevtchn_notify(xenevtchn_handle *xce, evtchn_port_t
port)
return ioctl(fd, IOCTL_EVTCHN_NOTIFY, ¬ify);
}
-xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
uint32_t domid)
+xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
+ uint32_t domid)
{
int ret, fd = xce->fd;
struct ioctl_evtchn_bind_unbound_port bind;
@@ -77,11 +82,13 @@ xenevtchn_port_or_error_t
xenevtchn_bind_unbound_port(xenevtchn_handle *xce, uin
bind.remote_domain = domid;
ret = ioctl(fd, IOCTL_EVTCHN_BIND_UNBOUND_PORT, &bind);
- return ( ret == 0 ) ? bind.port : ret;
+
+ return ret ?: bind.port;
}
-xenevtchn_port_or_error_t
-xenevtchn_bind_interdomain(xenevtchn_handle *xce, uint32_t domid,
evtchn_port_t remote_port)
+xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
+ uint32_t domid,
+ evtchn_port_t remote_port)
{
int ret, fd = xce->fd;
struct ioctl_evtchn_bind_interdomain bind;
@@ -90,10 +97,12 @@ xenevtchn_bind_interdomain(xenevtchn_handle *xce, uint32_t
domid, evtchn_port_t
bind.remote_port = remote_port;
ret = ioctl(fd, IOCTL_EVTCHN_BIND_INTERDOMAIN, &bind);
- return ( ret == 0 ) ? bind.port : ret;
+
+ return ret ?: bind.port;
}
-xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce, unsigned
int virq)
+xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce,
+ unsigned int virq)
{
int ret, fd = xce->fd;
struct ioctl_evtchn_bind_virq bind;
@@ -101,7 +110,8 @@ xenevtchn_port_or_error_t
xenevtchn_bind_virq(xenevtchn_handle *xce, unsigned in
bind.virq = virq;
ret = ioctl(fd, IOCTL_EVTCHN_BIND_VIRQ, &bind);
- return ( ret == 0 ) ? bind.port : ret;
+
+ return ret ?: bind.port;
}
int xenevtchn_unbind(xenevtchn_handle *xce, evtchn_port_t port)
@@ -131,6 +141,7 @@ int xenevtchn_unmask(xenevtchn_handle *xce, evtchn_port_t
port)
if ( write(fd, &port, sizeof(port)) != sizeof(port) )
return -1;
+
return 0;
}
diff --git a/tools/libs/evtchn/linux.c b/tools/libs/evtchn/linux.c
index 17e64aea32..9aaeef0faf 100644
--- a/tools/libs/evtchn/linux.c
+++ b/tools/libs/evtchn/linux.c
@@ -37,9 +37,12 @@
int osdep_evtchn_open(xenevtchn_handle *xce)
{
int fd = open("/dev/xen/evtchn", O_RDWR|O_CLOEXEC);
+
if ( fd == -1 )
return -1;
+
xce->fd = fd;
+
return 0;
}
@@ -74,7 +77,7 @@ int xenevtchn_notify(xenevtchn_handle *xce, evtchn_port_t
port)
}
xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
- uint32_t domid)
+ uint32_t domid)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_unbound_port bind;
@@ -85,8 +88,8 @@ xenevtchn_port_or_error_t
xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
}
xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
- uint32_t domid,
- evtchn_port_t remote_port)
+ uint32_t domid,
+ evtchn_port_t remote_port)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_interdomain bind;
@@ -98,7 +101,7 @@ xenevtchn_port_or_error_t
xenevtchn_bind_interdomain(xenevtchn_handle *xce,
}
xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce,
- unsigned int virq)
+ unsigned int virq)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_virq bind;
@@ -135,6 +138,7 @@ int xenevtchn_unmask(xenevtchn_handle *xce, evtchn_port_t
port)
if ( write(fd, &port, sizeof(port)) != sizeof(port) )
return -1;
+
return 0;
}
diff --git a/tools/libs/evtchn/minios.c b/tools/libs/evtchn/minios.c
index 9cd7636fc5..b4e09bff3b 100644
--- a/tools/libs/evtchn/minios.c
+++ b/tools/libs/evtchn/minios.c
@@ -43,22 +43,28 @@ extern void minios_evtchn_close_fd(int fd);
extern struct wait_queue_head event_queue;
/* XXX Note: This is not threadsafe */
-static struct evtchn_port_info* port_alloc(int fd) {
+static struct evtchn_port_info *port_alloc(int fd)
+{
struct evtchn_port_info *port_info;
+
port_info = malloc(sizeof(struct evtchn_port_info));
- if (port_info == NULL)
+ if ( port_info == NULL )
return NULL;
+
port_info->pending = 0;
port_info->port = -1;
port_info->bound = 0;
LIST_INSERT_HEAD(&files[fd].evtchn.ports, port_info, list);
+
return port_info;
}
-static void port_dealloc(struct evtchn_port_info *port_info) {
- if (port_info->bound)
+static void port_dealloc(struct evtchn_port_info *port_info)
+{
+ if ( port_info->bound )
unbind_evtchn(port_info->port);
+
LIST_REMOVE(port_info, list);
free(port_info);
}
@@ -66,11 +72,14 @@ static void port_dealloc(struct evtchn_port_info
*port_info) {
int osdep_evtchn_open(xenevtchn_handle *xce)
{
int fd = alloc_fd(FTYPE_EVTCHN);
+
if ( fd == -1 )
return -1;
+
LIST_INIT(&files[fd].evtchn.ports);
xce->fd = fd;
printf("evtchn_open() -> %d\n", fd);
+
return 0;
}
@@ -85,12 +94,14 @@ int osdep_evtchn_close(xenevtchn_handle *xce)
int osdep_evtchn_restrict(xenevtchn_handle *xce, domid_t domid)
{
errno = -EOPNOTSUPP;
+
return -1;
}
void minios_evtchn_close_fd(int fd)
{
struct evtchn_port_info *port_info, *tmp;
+
LIST_FOREACH_SAFE(port_info, &files[fd].evtchn.ports, list, tmp)
port_dealloc(port_info);
@@ -108,10 +119,12 @@ int xenevtchn_notify(xenevtchn_handle *xce, evtchn_port_t
port)
ret = notify_remote_via_evtchn(port);
- if (ret < 0) {
+ if ( ret < 0 )
+ {
errno = -ret;
ret = -1;
}
+
return ret;
}
@@ -119,12 +132,15 @@ static void evtchn_handler(evtchn_port_t port, struct
pt_regs *regs, void *data)
{
int fd = (int)(intptr_t)data;
struct evtchn_port_info *port_info;
+
assert(files[fd].type == FTYPE_EVTCHN);
mask_evtchn(port);
- LIST_FOREACH(port_info, &files[fd].evtchn.ports, list) {
- if (port_info->port == port)
+ LIST_FOREACH(port_info, &files[fd].evtchn.ports, list)
+ {
+ if ( port_info->port == port )
goto found;
}
+
printk("Unknown port for handle %d\n", fd);
return;
@@ -134,7 +150,8 @@ static void evtchn_handler(evtchn_port_t port, struct
pt_regs *regs, void *data)
wake_up(&event_queue);
}
-xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
uint32_t domid)
+xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
+ uint32_t domid)
{
int fd = xce->fd;
struct evtchn_port_info *port_info;
@@ -143,26 +160,31 @@ xenevtchn_port_or_error_t
xenevtchn_bind_unbound_port(xenevtchn_handle *xce, uin
assert(get_current() == main_thread);
port_info = port_alloc(fd);
- if (port_info == NULL)
+ if ( port_info == NULL )
return -1;
printf("xenevtchn_bind_unbound_port(%d)", domid);
- ret = evtchn_alloc_unbound(domid, evtchn_handler, (void*)(intptr_t)fd,
&port);
+ ret = evtchn_alloc_unbound(domid, evtchn_handler,
+ (void *)(intptr_t)fd, &port);
printf(" = %d\n", ret);
- if (ret < 0) {
+ if ( ret < 0 )
+ {
port_dealloc(port_info);
errno = -ret;
return -1;
}
+
port_info->bound = 1;
port_info->port = port;
unmask_evtchn(port);
+
return port;
}
-xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
uint32_t domid,
- evtchn_port_t remote_port)
+xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
+ uint32_t domid,
+ evtchn_port_t remote_port)
{
int fd = xce->fd;
struct evtchn_port_info *port_info;
@@ -171,21 +193,25 @@ xenevtchn_port_or_error_t
xenevtchn_bind_interdomain(xenevtchn_handle *xce, uint
assert(get_current() == main_thread);
port_info = port_alloc(fd);
- if (port_info == NULL)
+ if ( port_info == NULL )
return -1;
printf("xenevtchn_bind_interdomain(%d, %"PRId32")", domid, remote_port);
- ret = evtchn_bind_interdomain(domid, remote_port, evtchn_handler,
(void*)(intptr_t)fd, &local_port);
+ ret = evtchn_bind_interdomain(domid, remote_port, evtchn_handler,
+ (void *)(intptr_t)fd, &local_port);
printf(" = %d\n", ret);
- if (ret < 0) {
+ if ( ret < 0 )
+ {
port_dealloc(port_info);
errno = -ret;
return -1;
}
+
port_info->bound = 1;
port_info->port = local_port;
unmask_evtchn(local_port);
+
return local_port;
}
@@ -194,18 +220,24 @@ int xenevtchn_unbind(xenevtchn_handle *xce, evtchn_port_t
port)
int fd = xce->fd;
struct evtchn_port_info *port_info;
- LIST_FOREACH(port_info, &files[fd].evtchn.ports, list) {
- if (port_info->port == port) {
+ LIST_FOREACH(port_info, &files[fd].evtchn.ports, list)
+ {
+ if ( port_info->port == port )
+ {
port_dealloc(port_info);
return 0;
}
}
- printf("Warning: couldn't find port %"PRId32" for xc handle %x\n", port,
fd);
+
+ printf("Warning: couldn't find port %"PRId32" for xc handle %x\n",
+ port, fd);
errno = EINVAL;
+
return -1;
}
-xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce, unsigned
int virq)
+xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce,
+ unsigned int virq)
{
int fd = xce->fd;
struct evtchn_port_info *port_info;
@@ -213,21 +245,24 @@ xenevtchn_port_or_error_t
xenevtchn_bind_virq(xenevtchn_handle *xce, unsigned in
assert(get_current() == main_thread);
port_info = port_alloc(fd);
- if (port_info == NULL)
+ if ( port_info == NULL )
return -1;
printf("xenevtchn_bind_virq(%d)", virq);
- port = bind_virq(virq, evtchn_handler, (void*)(intptr_t)fd);
+ port = bind_virq(virq, evtchn_handler, (void *)(intptr_t)fd);
printf(" = %d\n", port);
- if (port < 0) {
+ if ( port < 0 )
+ {
port_dealloc(port_info);
errno = -port;
return -1;
}
+
port_info->bound = 1;
port_info->port = port;
unmask_evtchn(port);
+
return port;
}
@@ -239,26 +274,35 @@ xenevtchn_port_or_error_t
xenevtchn_pending(xenevtchn_handle *xce)
evtchn_port_t ret = -1;
local_irq_save(flags);
+
files[fd].read = 0;
- LIST_FOREACH(port_info, &files[fd].evtchn.ports, list) {
- if (port_info->port != -1 && port_info->pending) {
- if (ret == -1) {
+ LIST_FOREACH(port_info, &files[fd].evtchn.ports, list)
+ {
+ if ( port_info->port != -1 && port_info->pending )
+ {
+ if ( ret == -1 )
+ {
ret = port_info->port;
port_info->pending = 0;
- } else {
+ }
+ else
+ {
files[fd].read = 1;
break;
}
}
}
+
local_irq_restore(flags);
+
return ret;
}
int xenevtchn_unmask(xenevtchn_handle *xce, evtchn_port_t port)
{
unmask_evtchn(port);
+
return 0;
}
diff --git a/tools/libs/evtchn/netbsd.c b/tools/libs/evtchn/netbsd.c
index 8b8545d2f9..53f9299ebb 100644
--- a/tools/libs/evtchn/netbsd.c
+++ b/tools/libs/evtchn/netbsd.c
@@ -34,9 +34,12 @@
int osdep_evtchn_open(xenevtchn_handle *xce)
{
int fd = open(EVTCHN_DEV_NAME, O_NONBLOCK|O_RDWR);
+
if ( fd == -1 )
return -1;
+
xce->fd = fd;
+
return 0;
}
@@ -51,6 +54,7 @@ int osdep_evtchn_close(xenevtchn_handle *xce)
int osdep_evtchn_restrict(xenevtchn_handle *xce, domid_t domid)
{
errno = -EOPNOTSUPP;
+
return -1;
}
@@ -69,7 +73,8 @@ int xenevtchn_notify(xenevtchn_handle *xce, evtchn_port_t
port)
return ioctl(fd, IOCTL_EVTCHN_NOTIFY, ¬ify);
}
-xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle * xce,
uint32_t domid)
+xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
+ uint32_t domid)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_unbound_port bind;
@@ -78,14 +83,15 @@ xenevtchn_port_or_error_t
xenevtchn_bind_unbound_port(xenevtchn_handle * xce, ui
bind.remote_domain = domid;
ret = ioctl(fd, IOCTL_EVTCHN_BIND_UNBOUND_PORT, &bind);
- if (ret == 0)
+ if ( ret == 0 )
return bind.port;
else
return -1;
}
-xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
uint32_t domid,
- evtchn_port_t remote_port)
+xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
+ uint32_t domid,
+ evtchn_port_t remote_port)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_interdomain bind;
@@ -95,7 +101,7 @@ xenevtchn_port_or_error_t
xenevtchn_bind_interdomain(xenevtchn_handle *xce, uint
bind.remote_port = remote_port;
ret = ioctl(fd, IOCTL_EVTCHN_BIND_INTERDOMAIN, &bind);
- if (ret == 0)
+ if ( ret == 0 )
return bind.port;
else
return -1;
@@ -111,7 +117,8 @@ int xenevtchn_unbind(xenevtchn_handle *xce, evtchn_port_t
port)
return ioctl(fd, IOCTL_EVTCHN_UNBIND, &unbind);
}
-xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce, unsigned
int virq)
+xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce,
+ unsigned int virq)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_virq bind;
@@ -120,7 +127,7 @@ xenevtchn_port_or_error_t
xenevtchn_bind_virq(xenevtchn_handle *xce, unsigned in
bind.virq = virq;
err = ioctl(fd, IOCTL_EVTCHN_BIND_VIRQ, &bind);
- if (err)
+ if ( err )
return -1;
else
return bind.port;
@@ -140,6 +147,7 @@ xenevtchn_port_or_error_t
xenevtchn_pending(xenevtchn_handle *xce)
int xenevtchn_unmask(xenevtchn_handle *xce, evtchn_port_t port)
{
int fd = xce->fd;
+
return write_exact(fd, (char *)&port, sizeof(port));
}
diff --git a/tools/libs/evtchn/solaris.c b/tools/libs/evtchn/solaris.c
index dd41f62a24..d87abc553c 100644
--- a/tools/libs/evtchn/solaris.c
+++ b/tools/libs/evtchn/solaris.c
@@ -72,7 +72,8 @@ int xenevtchn_notify(xenevtchn_handle *xce, evtchn_port_t
port)
return ioctl(fd, IOCTL_EVTCHN_NOTIFY, ¬ify);
}
-xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
uint32_t domid)
+xenevtchn_port_or_error_t xenevtchn_bind_unbound_port(xenevtchn_handle *xce,
+ uint32_t domid)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_unbound_port bind;
@@ -82,8 +83,9 @@ xenevtchn_port_or_error_t
xenevtchn_bind_unbound_port(xenevtchn_handle *xce, uin
return ioctl(fd, IOCTL_EVTCHN_BIND_UNBOUND_PORT, &bind);
}
-xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
uint32_t domid,
- evtchn_port_t remote_port)
+xenevtchn_port_or_error_t xenevtchn_bind_interdomain(xenevtchn_handle *xce,
+ uint32_t domid,
+ evtchn_port_t remote_port)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_interdomain bind;
@@ -94,7 +96,8 @@ xenevtchn_port_or_error_t
xenevtchn_bind_interdomain(xenevtchn_handle *xce, uint
return ioctl(fd, IOCTL_EVTCHN_BIND_INTERDOMAIN, &bind);
}
-xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce, unsigned
int virq)
+xenevtchn_port_or_error_t xenevtchn_bind_virq(xenevtchn_handle *xce,
+ unsigned int virq)
{
int fd = xce->fd;
struct ioctl_evtchn_bind_virq bind;
@@ -128,6 +131,7 @@ xenevtchn_port_or_error_t
xenevtchn_pending(xenevtchn_handle *xce)
int xenevtchn_unmask(xenevtchn_handle *xce, evtchn_port_t port)
{
int fd = xce->fd;
+
return write_exact(fd, (char *)&port, sizeof(port));
}
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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