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[Qemu-devel] [PATCH v6 3/5] sockets: use error class to pass connect err
From: |
Amos Kong |
Subject: |
[Qemu-devel] [PATCH v6 3/5] sockets: use error class to pass connect error |
Date: |
Tue, 17 Apr 2012 22:54:20 +0800 |
User-agent: |
StGit/0.15 |
Add a new argument in inet_connect()/inet_connect_opts()
to pass back connect error.
Change nbd, vnc to use new interface.
Signed-off-by: Amos Kong <address@hidden>
---
nbd.c | 2 +-
qemu-char.c | 2 +-
qemu-sockets.c | 13 ++++++++++---
qemu_socket.h | 6 ++++--
ui/vnc.c | 2 +-
5 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/nbd.c b/nbd.c
index b4e68a9..bb71f00 100644
--- a/nbd.c
+++ b/nbd.c
@@ -146,7 +146,7 @@ int tcp_socket_outgoing(const char *address, uint16_t port)
int tcp_socket_outgoing_spec(const char *address_and_port)
{
- return inet_connect(address_and_port, true);
+ return inet_connect(address_and_port, true, NULL);
}
int tcp_socket_incoming(const char *address, uint16_t port)
diff --git a/qemu-char.c b/qemu-char.c
index 74c60e1..09f990a 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2444,7 +2444,7 @@ static CharDriverState *qemu_chr_open_socket(QemuOpts
*opts)
if (is_listen) {
fd = inet_listen_opts(opts, 0);
} else {
- fd = inet_connect_opts(opts);
+ fd = inet_connect_opts_err(opts, NULL);
}
}
if (fd < 0) {
diff --git a/qemu-sockets.c b/qemu-sockets.c
index e886195..2bd87fa 100644
--- a/qemu-sockets.c
+++ b/qemu-sockets.c
@@ -197,7 +197,7 @@ listen:
return slisten;
}
-int inet_connect_opts(QemuOpts *opts)
+int inet_connect_opts(QemuOpts *opts, Error **errp)
{
struct addrinfo ai,*res,*e;
const char *addr;
@@ -217,6 +217,7 @@ int inet_connect_opts(QemuOpts *opts)
block = qemu_opt_get_bool(opts, "block", 0);
if (addr == NULL || port == NULL) {
fprintf(stderr, "inet_connect: host and/or port not specified\n");
+ error_set(errp, QERR_SOCKET_CREATE_FAILED);
return -1;
}
@@ -229,6 +230,7 @@ int inet_connect_opts(QemuOpts *opts)
if (0 != (rc = getaddrinfo(addr, port, &ai, &res))) {
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
gai_strerror(rc));
+ error_set(errp, QERR_SOCKET_CREATE_FAILED);
return -1;
}
@@ -254,6 +256,7 @@ int inet_connect_opts(QemuOpts *opts)
err = 0;
if (connect(sock, e->ai_addr, e->ai_addrlen) < 0) {
err = -socket_error();
+ error_set(errp, QERR_SOCKET_CONNECT_FAILED);
}
#ifndef _WIN32
} while (err == -EINTR || err == -EWOULDBLOCK);
@@ -264,9 +267,11 @@ int inet_connect_opts(QemuOpts *opts)
if (err >= 0) {
goto success;
} else if (!block && err == -EINPROGRESS) {
+ error_set(errp, QERR_SOCKET_CONNECT_IN_PROGRESS);
goto success;
#ifdef _WIN32
} else if (!block && err == -WSAEALREADY) {
+ error_set(errp, QERR_SOCKET_CONNECT_IN_PROGRESS);
goto success;
#endif
}
@@ -477,7 +482,7 @@ int inet_listen(const char *str, char *ostr, int olen,
return sock;
}
-int inet_connect(const char *str, bool block)
+int inet_connect(const char *str, bool block, Error **errp)
{
QemuOpts *opts;
int sock = -1;
@@ -487,7 +492,9 @@ int inet_connect(const char *str, bool block)
if (block) {
qemu_opt_set(opts, "block", "on");
}
- sock = inet_connect_opts(opts);
+ sock = inet_connect_opts(opts, errp);
+ } else {
+ error_set(errp, QERR_SOCKET_CREATE_FAILED);
}
qemu_opts_del(opts);
return sock;
diff --git a/qemu_socket.h b/qemu_socket.h
index f73e26d..26998ef 100644
--- a/qemu_socket.h
+++ b/qemu_socket.h
@@ -27,6 +27,8 @@ int inet_aton(const char *cp, struct in_addr *ia);
#endif /* !_WIN32 */
#include "qemu-option.h"
+#include "error.h"
+#include "qerror.h"
/* misc helpers */
int qemu_socket(int domain, int type, int protocol);
@@ -40,8 +42,8 @@ int send_all(int fd, const void *buf, int len1);
int inet_listen_opts(QemuOpts *opts, int port_offset);
int inet_listen(const char *str, char *ostr, int olen,
int socktype, int port_offset);
-int inet_connect_opts(QemuOpts *opts);
-int inet_connect(const char *str, bool block);
+int inet_connect_opts(QemuOpts *opts, Error **errp);
+int inet_connect(const char *str, bool block, Error **errp);
int inet_dgram_opts(QemuOpts *opts);
const char *inet_strfamily(int family);
diff --git a/ui/vnc.c b/ui/vnc.c
index 4a96153..3ae7704 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -3068,7 +3068,7 @@ int vnc_display_open(DisplayState *ds, const char
*display)
if (strncmp(display, "unix:", 5) == 0)
vs->lsock = unix_connect(display+5);
else
- vs->lsock = inet_connect(display, true);
+ vs->lsock = inet_connect(display, true, NULL);
if (-1 == vs->lsock) {
g_free(vs->display);
vs->display = NULL;