/* File transport - send/receive a bunch of bytes from a file */
-/* Authors: Martin Quinson */
-/* Copyright (C) 2004 Martin Quinson. */
+/* Copyright (c) 2004 Martin Quinson. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include "gras_private.h"
+#include "portable.h"
#include "transport_private.h"
+#include "xbt/ex.h"
-GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(trp_file,transport);
-
-typedef struct {
- int buffsize;
-} gras_trp_tcp_sock_specific_t;
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_trp_file,gras_trp,
+ "Pseudo-transport to write to/read from a file");
/***
*** Prototypes
***/
-void gras_trp_file_close(gras_socket_t *sd);
+void gras_trp_file_close(gras_socket_t sd);
-gras_error_t gras_trp_file_chunk_send(gras_socket_t *sd,
- char *data,
- size_t size);
-
-gras_error_t gras_trp_file_chunk_recv(gras_socket_t *sd,
- char *data,
- size_t size);
-
-void gras_trp_file_free_specific(void *s);
+void gras_trp_file_chunk_send_raw(gras_socket_t sd,
+ const char *data,
+ unsigned long int size);
+void gras_trp_file_chunk_send(gras_socket_t sd,
+ const char *data,
+ unsigned long int size,
+ int stable_ignored);
+
+int gras_trp_file_chunk_recv(gras_socket_t sd,
+ char *data,
+ unsigned long int size);
/***
*** Specific plugin part
typedef struct {
fd_set incoming_socks;
-} gras_trp_file_specific_t;
+} gras_trp_file_plug_data_t;
/***
*** Specific socket part
***/
+
/***
*** Code
***/
-gras_error_t
-gras_trp_file_init(gras_trp_plugin_t **dst) {
+void
+gras_trp_file_setup(gras_trp_plugin_t plug) {
- gras_trp_plugin_t *res=malloc(sizeof(gras_trp_plugin_t));
- gras_trp_file_specific_t *specif = malloc(sizeof(gras_trp_file_specific_t));
- if (!res || !specif)
- RAISE_MALLOC;
+ gras_trp_file_plug_data_t *file = xbt_new(gras_trp_file_plug_data_t,1);
- FD_ZERO(&(specif->incoming_socks));
+ FD_ZERO(&(file->incoming_socks));
- res->name = strdup("file");
- res->socket_client = NULL;
- res->socket_server = NULL;
- res->socket_accept = NULL;
- res->socket_close = gras_trp_file_close;
+ plug->socket_close = gras_trp_file_close;
- res->chunk_send = gras_trp_file_chunk_send;
- res->chunk_recv = gras_trp_file_chunk_recv;
+ plug->raw_send = gras_trp_file_chunk_send_raw;
+ plug->send = gras_trp_file_chunk_send;
- res->specific = (void*)specif;
- res->free_specific = gras_trp_file_free_specific;
+ plug->raw_recv = plug->recv = gras_trp_file_chunk_recv;
- *dst = res;
- return no_error;
-}
-
-void gras_trp_file_free_specific(void *s) {
- gras_trp_file_specific_t *specific = s;
- free(specific);
+ plug->data = (void*)file;
}
/**
*
* This only possible in RL, and is mainly for debugging.
*/
-gras_error_t
-gras_socket_client_from_file(const char*path,
- /* OUT */ gras_socket_t **dst) {
- gras_error_t errcode;
- gras_trp_plugin_t *trp;
+gras_socket_t
+gras_socket_client_from_file(const char*path) {
+ gras_socket_t res;
- gras_assert0(gras_if_RL(),
+ xbt_assert0(gras_if_RL(),
"Cannot use file as socket in the simulator");
- TRY(gras_trp_socket_new(0,dst));
+ gras_trp_socket_new(0,&res);
- TRY(gras_trp_plugin_get_by_name("file",&trp));
- (*dst)->plugin=trp;
+ res->plugin=gras_trp_plugin_get_by_name("file");
if (strcmp("-", path)) {
- (*dst)->sd = open(path, O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR|S_IRGRP );
+ res->sd = open(path, O_WRONLY|O_CREAT | O_BINARY, S_IRUSR|S_IWUSR|S_IRGRP );
- if ( (*dst)->sd < 0) {
- RAISE2(system_error,
+ if ( res->sd < 0) {
+ THROW2(system_error,0,
"Cannot create a client socket from file %s: %s",
path, strerror(errno));
}
} else {
- (*dst)->sd = 1; /* stdout */
+ res->sd = 1; /* stdout */
}
+ res->recv_ok=0;
DEBUG5("sock_client_from_file(%s): sd=%d in=%c out=%c accept=%c",
path,
- (*dst)->sd,
- (*dst)->incoming?'y':'n',
- (*dst)->outgoing?'y':'n',
- (*dst)->accepting?'y':'n');
- /* register socket */
- errcode = gras_dynar_push(_gras_trp_sockets,dst);
- if (errcode != no_error) {
- free(*dst);
- *dst = NULL;
- return errcode;
- }
+ res->sd,
+ res->incoming?'y':'n',
+ res->outgoing?'y':'n',
+ res->accepting?'y':'n');
- return no_error;
+ return res;
}
/**
*
* This only possible in RL, and is mainly for debugging.
*/
-gras_error_t
-gras_socket_server_from_file(const char*path,
- /* OUT */ gras_socket_t **dst) {
- gras_error_t errcode;
- gras_trp_plugin_t *trp;
+gras_socket_t gras_socket_server_from_file(const char*path) {
+ gras_socket_t res;
- gras_assert0(gras_if_RL(),
+ xbt_assert0(gras_if_RL(),
"Cannot use file as socket in the simulator");
- TRY(gras_trp_socket_new(1,dst));
+ gras_trp_socket_new(1,&res);
- TRY(gras_trp_plugin_get_by_name("file",&trp));
- (*dst)->plugin=trp;
+ res->plugin=gras_trp_plugin_get_by_name("file");
if (strcmp("-", path)) {
- (*dst)->sd = open(path, O_RDONLY );
+ res->sd = open(path, O_RDONLY | O_BINARY);
- if ( (*dst)->sd < 0) {
- RAISE2(system_error,
+ if ( res->sd < 0) {
+ THROW2(system_error,0,
"Cannot create a server socket from file %s: %s",
path, strerror(errno));
}
} else {
- (*dst)->sd = 0; /* stdin */
+ res->sd = 0; /* stdin */
}
DEBUG4("sd=%d in=%c out=%c accept=%c",
- (*dst)->sd,
- (*dst)->incoming?'y':'n',
- (*dst)->outgoing?'y':'n',
- (*dst)->accepting?'y':'n');
-
- /* register socket */
- errcode = gras_dynar_push(_gras_trp_sockets,dst);
- if (errcode != no_error) {
- free(*dst);
- *dst = NULL;
- return errcode;
- }
+ res->sd,
+ res->incoming?'y':'n',
+ res->outgoing?'y':'n',
+ res->accepting?'y':'n');
- return no_error;
+ res->recv_ok=0;
+ return res;
}
-void gras_trp_file_close(gras_socket_t *sock){
- gras_trp_file_specific_t *specific;
+void gras_trp_file_close(gras_socket_t sock){
+ gras_trp_file_plug_data_t *data;
if (!sock) return; /* close only once */
- specific=sock->plugin->specific;
+ data=sock->plugin->data;
if (sock->sd == 0) {
DEBUG0("Do not close stdin");
DEBUG1("close file connection %d", sock->sd);
/* forget about the socket */
- FD_CLR(sock->sd, &(specific->incoming_socks));
+ FD_CLR(sock->sd, &(data->incoming_socks));
/* close the socket */
if(close(sock->sd) < 0) {
- WARNING2("error while closing file %d: %s",
+ WARN2("error while closing file %d: %s",
sock->sd, strerror(errno));
}
}
*
* Send data on a file pseudo-socket
*/
-gras_error_t
-gras_trp_file_chunk_send(gras_socket_t *sock,
- char *data,
- size_t size) {
+void
+gras_trp_file_chunk_send(gras_socket_t sock,
+ const char *data,
+ unsigned long int size,
+ int stable_ignored) {
+ gras_trp_file_chunk_send_raw(sock,data,size);
+}
+void
+gras_trp_file_chunk_send_raw(gras_socket_t sock,
+ const char *data,
+ unsigned long int size) {
- gras_assert0(size >= 0, "Cannot send a negative amount of data");
+ xbt_assert0(sock->outgoing, "Cannot write on client file socket");
+ xbt_assert0(size >= 0, "Cannot send a negative amount of data");
while (size) {
int status = 0;
- DEBUG3("write(%d, %p, %ld);", sock->sd, data, (size_t)size);
- status = write(sock->sd, data, (size_t)size);
+ DEBUG3("write(%d, %p, %ld);", sock->sd, data, (long int)size);
+ status = write(sock->sd, data, (long int)size);
if (status == -1) {
- RAISE4(system_error,"write(%d,%p,%d) failed: %s",
+ THROW4(system_error,0,"write(%d,%p,%d) failed: %s",
sock->sd, data, (int)size,
strerror(errno));
}
size -= status;
data += status;
} else {
- RAISE0(system_error,"file descriptor closed");
+ THROW0(system_error,0,"file descriptor closed");
}
}
-
- return no_error;
}
/**
* gras_trp_file_chunk_recv:
*
* Receive data on a file pseudo-socket.
*/
-gras_error_t
-gras_trp_file_chunk_recv(gras_socket_t *sock,
- char *data,
- size_t size) {
-
- /* TCP sockets are in duplex mode, don't check direction */
- gras_assert0(sock, "Cannot recv on an NULL socket");
- gras_assert0(size >= 0, "Cannot receive a negative amount of data");
-
+int
+gras_trp_file_chunk_recv(gras_socket_t sock,
+ char *data,
+ unsigned long int size) {
+
+ int got = 0;
+
+ xbt_assert0(sock, "Cannot recv on an NULL socket");
+ xbt_assert0(sock->incoming, "Cannot recv on client file socket");
+ xbt_assert0(size >= 0, "Cannot receive a negative amount of data");
+
while (size) {
int status = 0;
- status = read(sock->sd, data, (size_t)size);
- DEBUG3("read(%d, %p, %ld);", sock->sd, data, size);
+ status = read(sock->sd, data+got, (long int)size);
+ DEBUG3("read(%d, %p, %ld);", sock->sd, data+got, size);
if (status == -1) {
- RAISE4(system_error,"read(%d,%p,%d) failed: %s",
- sock->sd, data, (int)size,
+ THROW4(system_error,0,"read(%d,%p,%d) failed: %s",
+ sock->sd, data+got, (int)size,
strerror(errno));
}
if (status) {
- size -= status;
- data += status;
+ size -= status;
+ got += status;
} else {
- RAISE0(system_error,"file descriptor closed");
+ THROW0(system_error,0,"file descriptor closed");
}
}
-
- return no_error;
+ return got;
}
