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- add ability for openocd to communicate to gdb using pipes (stdin/stdout).

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- this is enabled by new command line option option --pipe.

git-svn-id: svn://svn.berlios.de/openocd/trunk@1242 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak
2008-12-15 09:43:26 +00:00
parent 459d03e3bb
commit 47d0449347
10 changed files with 272 additions and 146 deletions
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192
src/server/server.c
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@@ -53,6 +53,9 @@ service_t *services = NULL;
static int shutdown_openocd = 0;
int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* set when using pipes rather than tcp */
int server_use_pipes = 0;
int add_connection(service_t *service, command_context_t *cmd_ctx)
{
unsigned int address_size;
@@ -69,28 +72,44 @@ int add_connection(service_t *service, command_context_t *cmd_ctx)
c->priv = NULL;
c->next = NULL;
address_size = sizeof(c->sin);
c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
/* This increases performance dramatically for e.g. GDB load which
* does not have a sliding window protocol. */
retval=setsockopt(c->fd, /* socket affected */
IPPROTO_TCP, /* set option at TCP level */
TCP_NODELAY, /* name of option */
(char *)&flag, /* the cast is historical cruft */
sizeof(int)); /* length of option value */
if (service->type == CONNECTION_TCP)
{
address_size = sizeof(c->sin);
LOG_INFO("accepting '%s' connection from %i", service->name, c->sin.sin_port);
if ((retval = service->new_connection(c)) == ERROR_OK)
{
c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
/* This increases performance dramatically for e.g. GDB load which
* does not have a sliding window protocol. */
retval=setsockopt(c->fd, /* socket affected */
IPPROTO_TCP, /* set option at TCP level */
TCP_NODELAY, /* name of option */
(char *)&flag, /* the cast is historical cruft */
sizeof(int)); /* length of option value */
LOG_INFO("accepting '%s' connection from %i", service->name, c->sin.sin_port);
if ((retval = service->new_connection(c)) != ERROR_OK)
{
close_socket(c->fd);
LOG_ERROR("attempted '%s' connection rejected", service->name);
free(c);
return retval;
}
}
else
else if (service->type == CONNECTION_PIPE)
{
close_socket(c->fd);
LOG_ERROR("attempted '%s' connection rejected", service->name);
free(c);
return retval;
#ifndef _WIN32
c->fd = service->fd;
/* do not check for new connections again on stdin */
service->fd = -1;
#endif
LOG_INFO("accepting '%s' connection from pipe", service->name);
if ((retval = service->new_connection(c)) != ERROR_OK)
{
LOG_ERROR("attempted '%s' connection rejected", service->name);
free(c);
return retval;
}
}
/* add to the end of linked list */
@@ -113,7 +132,8 @@ int remove_connection(service_t *service, connection_t *connection)
if (c->fd == connection->fd)
{
service->connection_closed(c);
close_socket(c->fd);
if (service->type == CONNECTION_TCP)
close_socket(c->fd);
command_done(c->cmd_ctx);
/* delete connection */
@@ -150,44 +170,67 @@ int add_service(char *name, enum connection_type type, unsigned short port, int
c->priv = priv;
c->next = NULL;
if ((c->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
if (type == CONNECTION_TCP)
{
LOG_ERROR("error creating socket: %s", strerror(errno));
exit(-1);
}
setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int));
socket_nonblock(c->fd);
memset(&c->sin, 0, sizeof(c->sin));
c->sin.sin_family = AF_INET;
c->sin.sin_addr.s_addr = INADDR_ANY;
c->sin.sin_port = htons(port);
if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1)
{
LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
exit(-1);
}
if ((c->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
LOG_ERROR("error creating socket: %s", strerror(errno));
exit(-1);
}
setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int));
socket_nonblock(c->fd);
memset(&c->sin, 0, sizeof(c->sin));
c->sin.sin_family = AF_INET;
c->sin.sin_addr.s_addr = INADDR_ANY;
c->sin.sin_port = htons(port);
if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1)
{
LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
exit(-1);
}
#ifndef _WIN32
int segsize=65536;
setsockopt(c->fd, IPPROTO_TCP, TCP_MAXSEG, &segsize, sizeof(int));
int segsize=65536;
setsockopt(c->fd, IPPROTO_TCP, TCP_MAXSEG, &segsize, sizeof(int));
#endif
int window_size = 128 * 1024;
/* These setsockopt()s must happen before the listen() */
int window_size = 128 * 1024;
setsockopt(c->fd, SOL_SOCKET, SO_SNDBUF,
(char *)&window_size, sizeof(window_size));
setsockopt(c->fd, SOL_SOCKET, SO_RCVBUF,
(char *)&window_size, sizeof(window_size));
if (listen(c->fd, 1) == -1)
/* These setsockopt()s must happen before the listen() */
setsockopt(c->fd, SOL_SOCKET, SO_SNDBUF,
(char *)&window_size, sizeof(window_size));
setsockopt(c->fd, SOL_SOCKET, SO_RCVBUF,
(char *)&window_size, sizeof(window_size));
if (listen(c->fd, 1) == -1)
{
LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
exit(-1);
}
}
else if (type == CONNECTION_PIPE)
{
LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
exit(-1);
/* use stdin */
c->fd = STDIN_FILENO;
#ifdef _WIN32
/* for win32 set stdin/stdout to binary mode */
if (_setmode(_fileno(stdout), _O_BINARY) < 0)
LOG_WARNING("cannot change stdout mode to binary");
if (_setmode(_fileno(stdin), _O_BINARY) < 0)
LOG_WARNING("cannot change stdin mode to binary");
#else
socket_nonblock(c->fd);
#endif
}
else
{
LOG_ERROR("unknown connection type: %d", type);
exit(1);
}
/* add to the end of linked list */
@@ -310,14 +353,18 @@ int server_loop(command_context_t *command_context)
#ifndef _WIN32
#if BUILD_ECOSBOARD == 0
/* add STDIN to read_fds */
FD_SET(fileno(stdin), &read_fds);
if (server_use_pipes == 0)
{
/* add STDIN to read_fds */
FD_SET(fileno(stdin), &read_fds);
}
#endif
#endif
openocd_sleep_prelude();
kept_alive();
// Only while we're sleeping we'll let others run
/* Only while we're sleeping we'll let others run */
retval = select(fd_max + 1, &read_fds, NULL, NULL, &tv);
openocd_sleep_postlude();
@@ -371,11 +418,14 @@ int server_loop(command_context_t *command_context)
}
else
{
struct sockaddr_in sin;
unsigned int address_size = sizeof(sin);
int tmp_fd;
tmp_fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
close_socket(tmp_fd);
if (service->type != CONNECTION_PIPE)
{
struct sockaddr_in sin;
unsigned int address_size = sizeof(sin);
int tmp_fd;
tmp_fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
close_socket(tmp_fd);
}
LOG_INFO("rejected '%s' connection, no more connections allowed", service->name);
}
}
@@ -389,11 +439,16 @@ int server_loop(command_context_t *command_context)
{
if ((FD_ISSET(c->fd, &read_fds)) || c->input_pending)
{
if (service->input(c) != ERROR_OK)
if ((retval = service->input(c)) != ERROR_OK)
{
connection_t *next = c->next;
if (service->type == CONNECTION_PIPE)
{
/* if connection uses a pipe then shutdown openocd on error */
shutdown_openocd = 1;
}
remove_connection(service, c);
LOG_INFO("dropped '%s' connection", service->name);
LOG_INFO("dropped '%s' connection - error %d", service->name, retval);
c = next;
continue;
}
@@ -405,11 +460,15 @@ int server_loop(command_context_t *command_context)
#ifndef _WIN32
#if BUILD_ECOSBOARD == 0
if (FD_ISSET(fileno(stdin), &read_fds))
/* check for data on stdin if not using pipes */
if (server_use_pipes == 0)
{
if (getc(stdin) == 'x')
if (FD_ISSET(fileno(stdin), &read_fds))
{
shutdown_openocd = 1;
if (getc(stdin) == 'x')
{
shutdown_openocd = 1;
}
}
}
#endif
@@ -459,7 +518,6 @@ int server_init(void)
signal(SIGBREAK, sig_handler);
signal(SIGABRT, sig_handler);
#endif
return ERROR_OK;
}