/******************************************************************************
Function: globus_l_gass_server_ez_get_callback()
Description:
Parameters:
Returns:
******************************************************************************/
static void
globus_l_gass_server_ez_get_callback(
void *arg,
globus_gass_transfer_request_t request,
globus_byte_t * bytes,
globus_size_t len,
globus_bool_t last_data)
{
int fd;
globus_size_t amt;
fd=(int) arg;
if(!last_data)
{
amt = globus_libc_read(fd, bytes, len);
if(amt == 0)
{
globus_gass_transfer_send_bytes(request,
bytes,
0,
GLOBUS_TRUE,
globus_l_gass_server_ez_get_callback,
arg);
}
else
{
globus_gass_transfer_send_bytes(request,
bytes,
amt,
GLOBUS_FALSE,
globus_l_gass_server_ez_get_callback,
arg);
}
return;
}
if((fd!=fileno(stdout))&&(fd!=fileno(stderr)))
{
close(fd);
}
globus_free(bytes);
globus_gass_transfer_request_destroy(request);
} /* globus_l_gass_server_ez_get_callback() */
static void
globus_l_gass_server_ez_register_accept_callback(
void * listener,
globus_gass_transfer_request_t request
)
{
int rc;
char * subjectname;
char * path=GLOBUS_NULL;
char * url;
globus_url_t parsed_url;
globus_l_gass_server_ez_t * s;
globus_gass_server_ez_request_t *r;
struct stat statstruct;
globus_byte_t * buf;
int amt;
int flags=0;
subjectname=globus_gass_transfer_request_get_subject(request);
/* lookup our options */
s=(globus_l_gass_server_ez_t *)globus_hashtable_lookup(
&globus_l_gass_server_ez_listeners,
listener);
/* Check for valid URL */
url=globus_gass_transfer_request_get_url(request);
rc = globus_url_parse(url, &parsed_url);
if(rc != GLOBUS_SUCCESS ||
parsed_url.url_path == GLOBUS_NULL || strlen(parsed_url.url_path) == 0U)
{
globus_gass_transfer_deny(request, 404, "File Not Found");
globus_gass_transfer_request_destroy(request);
if (rc == GLOBUS_SUCCESS)
globus_url_destroy(&parsed_url);
goto reregister_nourl;
}
if(globus_gass_transfer_request_get_type(request) ==
GLOBUS_GASS_TRANSFER_REQUEST_TYPE_APPEND)
{
flags = O_CREAT | O_WRONLY | O_APPEND;
}
else if(globus_gass_transfer_request_get_type(request) ==
GLOBUS_GASS_TRANSFER_REQUEST_TYPE_PUT)
{
flags = O_CREAT | O_WRONLY | O_TRUNC;
}
switch(globus_gass_transfer_request_get_type(request))
{
case GLOBUS_GASS_TRANSFER_REQUEST_TYPE_APPEND:
case GLOBUS_GASS_TRANSFER_REQUEST_TYPE_PUT:
/* Check to see if this is a request we are allowed to handle */
if(((s->options & GLOBUS_GASS_SERVER_EZ_WRITE_ENABLE) == 0UL) &&
((s->options & GLOBUS_GASS_SERVER_EZ_STDOUT_ENABLE) == 0UL) &&
((s->options & GLOBUS_GASS_SERVER_EZ_STDERR_ENABLE) == 0UL) &&
((s->options & GLOBUS_GASS_SERVER_EZ_CLIENT_SHUTDOWN_ENABLE) ==
0UL))
{
goto deny;
}
/* Expand ~ and ~user prefix if enaabled in options */
rc = globus_l_gass_server_ez_tilde_expand(s->options,
parsed_url.url_path,
&path);
if(strncmp(path, "/dev/saga", 9) == 0 &&
(s->options & GLOBUS_GASS_SERVER_EZ_STDOUT_ENABLE))
{
rc = s->fd; // the pipe handle!
goto authorize;
}
else if(strncmp(path, "/dev/saga/", 9) == 0)
{
goto deny;
}
else if(strcmp(path, "/dev/globus_gass_client_shutdown") == 0)
{
if(s->options & GLOBUS_GASS_SERVER_EZ_CLIENT_SHUTDOWN_ENABLE &&
s->callback != GLOBUS_NULL)
{
s->callback();
}
goto deny;
}
#ifdef TARGET_ARCH_WIN32
// The call to open() in Windows defaults to text mode, so
// we to override it.
flags |= O_BINARY;
#endif
rc = globus_libc_open(path, flags, 0600);
if(rc < 0)
{
goto deny;
}
authorize:
globus_gass_transfer_authorize(request, 0);
if(s->options & GLOBUS_GASS_SERVER_EZ_LINE_BUFFER)
{
r=(globus_gass_server_ez_request_t *)globus_malloc(
sizeof(globus_gass_server_ez_request_t));
r->fd=rc;
r->line_buffer=globus_malloc(80);
r->line_buffer_used= 0UL;
r->line_buffer_length = 80UL;
r->linebuffer = GLOBUS_TRUE;
globus_gass_transfer_receive_bytes(request,
globus_malloc(1024),
1024,
1,
globus_gass_server_ez_put_memory_done,
r);
}
else
{
globus_gass_transfer_receive_bytes(request,
globus_malloc(1024),
1024,
1,
globus_l_gass_server_ez_put_callback,
(void *) rc);
}
break;
case GLOBUS_GASS_TRANSFER_REQUEST_TYPE_GET:
flags = O_RDONLY;
/* Expand ~ and ~user prefix if enaabled in options */
rc = globus_l_gass_server_ez_tilde_expand(s->options,
parsed_url.url_path,
&path);
if((s->options & GLOBUS_GASS_SERVER_EZ_READ_ENABLE) == 0UL)
{
goto deny;
}
if(stat(path, &statstruct)==0)
{
#ifdef TARGET_ARCH_WIN32
// The call to open() in Windows defaults to text mode,
// so we to override it.
flags |= O_BINARY;
#endif
rc = globus_libc_open(path, flags, 0600);
fstat(rc, &statstruct);
}
else
{
globus_gass_transfer_deny(request, 404, "File Not Found");
globus_gass_transfer_request_destroy(request);
goto reregister;
}
buf = globus_malloc(1024);
amt = read(rc, buf, 1024);
if(amt == -1)
{
globus_free(buf);
goto deny;
}
globus_gass_transfer_authorize(request,
statstruct.st_size);
globus_gass_transfer_send_bytes(request,
buf,
amt,
GLOBUS_FALSE,
globus_l_gass_server_ez_get_callback,
(void *) rc);
break;
default:
deny:
globus_gass_transfer_deny(request, 400, "Bad Request");
globus_gass_transfer_request_destroy(request);
}
reregister:
globus_url_destroy(&parsed_url);
reregister_nourl:
globus_gass_transfer_register_listen(
(globus_gass_transfer_listener_t) listener,
globus_l_gass_server_ez_listen_callback,
s->reqattr);
if (path != GLOBUS_NULL) globus_free(path);
} /*globus_l_gass_server_ez_register_accept_callback*/
static
void
globus_l_gram_streamer_local_poll(
void * arg)
{
globus_gram_streamer_monitor_t * monitor = arg;
int rc;
struct stat st;
unsigned char * data;
off_t data_size;
globus_size_t amt;
globus_bool_t last_data;
int i;
char * save_state_file;
globus_gram_stream_t * streams[] =
{
&monitor->output_stream,
&monitor->error_stream,
NULL
};
globus_gram_stream_t * stream;
globus_mutex_lock(&monitor->mutex);
/* Check if remote_io_file has changed */
rc = stat("remote_io_file", &st);
if (rc == 0)
{
if (st.st_mtime > monitor->remote_io_url_file_time)
{
/* Start the termination of the current output streams */
for (i = 0; streams[i] != NULL; i++)
{
stream = streams[i];
switch (stream->state)
{
case GLOBUS_GRAM_STREAM_NEW:
case GLOBUS_GRAM_STREAM_ACTIVE:
globus_gass_transfer_fail(
stream->handle,
globus_l_gram_streamer_fail,
monitor);
stream->state = GLOBUS_GRAM_STREAM_RESTART;
break;
case GLOBUS_GRAM_STREAM_FAIL:
case GLOBUS_GRAM_STREAM_DONE:
stream->state = GLOBUS_GRAM_STREAM_RESTART_NEW;
stream->sent = 0;
stream->last_sent = GLOBUS_FALSE;
lseek(stream->fd, 0, SEEK_SET);
stream->handle = GLOBUS_NULL_HANDLE;
break;
case GLOBUS_GRAM_STREAM_RESTART:
case GLOBUS_GRAM_STREAM_RESTART_NEW:
case GLOBUS_GRAM_STREAM_NONE:
break;
}
}
monitor->remote_io_url_file_time = st.st_mtime;
/* Load new state file */
save_state_file = monitor->request.job_state_file;
monitor->request.job_state_file = NULL;
globus_gram_job_manager_request_free(&monitor->request);
monitor->request.rsl = NULL;
monitor->request.job_state_file = save_state_file;
rc = globus_gram_job_manager_state_file_read(&monitor->request);
if (rc != GLOBUS_SUCCESS)
{
fprintf(stderr, "%d:",
rc);
exit(EXIT_FAILURE);
}
if (monitor->output_stream.source != NULL)
{
free(monitor->output_stream.source);
monitor->output_stream.source = NULL;
}
if (monitor->output_stream.destination != NULL)
{
free(monitor->output_stream.destination);
monitor->output_stream.destination = NULL;
}
if (monitor->error_stream.source != NULL)
{
free(monitor->error_stream.source);
monitor->error_stream.source = NULL;
}
if (monitor->error_stream.destination != NULL)
{
free(monitor->error_stream.destination);
monitor->error_stream.destination = NULL;
}
/* Re-evaluate RSL */
rc = globus_l_gram_streamer_get_destinations(
monitor);
}
}
/* On the first poll after everything is ready to restart, we'll reload
* state information and reopen the stream
*/
for (i = 0; streams[i] != NULL; i++)
{
stream = streams[i];
if (stream->state == GLOBUS_GRAM_STREAM_RESTART_NEW)
{
/* Re-open output stream */
if (stream->fd != -1 &&
stream->destination != NULL)
{
rc = globus_l_gram_streamer_open_destination(
monitor,
stream);
if (rc == GLOBUS_SUCCESS)
{
stream->state = GLOBUS_GRAM_STREAM_NEW;
}
else
{
stream->state = GLOBUS_GRAM_STREAM_FAIL;
}
}
else
{
stream->state = GLOBUS_GRAM_STREAM_DONE;
}
}
}
/* Only queue data if the transfer is alive */
for (i = 0; streams[i] != NULL; i++)
{
stream = streams[i];
if (stream->state == GLOBUS_GRAM_STREAM_ACTIVE &&
(fstat(stream->fd, &st) == 0))
{
data_size = st.st_size - stream->sent;
if (data_size > STREAMER_BLOCKSIZE)
{
data_size = STREAMER_BLOCKSIZE;
}
amt = 0;
data = NULL;
if (data_size > 0)
{
data = malloc((size_t) data_size);
do
{
rc = read(stream->fd, data + amt, data_size - amt);
if (rc < 0)
{
if (errno != EINTR)
{
break;
}
}
else if (rc == 0)
{
break;
}
else
{
amt += rc;
}
}
while (amt < data_size);
}
if (amt > 0 || ((monitor->pid_count == 0) && (!stream->last_sent)))
{
stream->sent += amt;
stream->blocks++;
last_data = (monitor->pid_count == 0) &&
(stream->sent == st.st_size);
rc = globus_gass_transfer_send_bytes(
stream->handle,
(data == NULL) ? malloc(1) : data,
amt,
last_data,
globus_l_gram_streamer_data_callback,
monitor);
switch (rc)
{
case GLOBUS_SUCCESS:
stream->last_sent = last_data;
break;
case GLOBUS_GASS_TRANSFER_ERROR_NULL_POINTER:
fprintf(stderr, "NULL pointer");
exit(EXIT_FAILURE);
break;
case GLOBUS_GASS_TRANSFER_ERROR_INVALID_USE:
stream->last_sent = GLOBUS_TRUE;
globus_gass_transfer_request_destroy(stream->handle);
stream->state = GLOBUS_GRAM_STREAM_FAIL;
break;
case GLOBUS_GASS_TRANSFER_ERROR_NOT_INITIALIZED:
fprintf(stderr, "Not initialized");
exit(EXIT_FAILURE);
break;
case GLOBUS_GASS_TRANSFER_REQUEST_FAILED:
fprintf(stderr, "Failed ");
exit(EXIT_FAILURE);
}
}
}
}
globus_mutex_unlock(&monitor->mutex);
}
