+++ /dev/null
-/* $Id$ */
-
-/* File transport - send/receive a bunch of bytes from a file */
-
-/* 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. */
-
-#include "portable.h"
-#include "gras/Transport/transport_private.h"
-#include "xbt/ex.h"
-
-#ifdef WIN32
-#include <sys/stat.h>
-#endif
-
-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_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_plug_data_t;
-
-/***
- *** Specific socket part
- ***/
-
-
-
-/***
- *** Code
- ***/
-void
-gras_trp_file_setup(gras_trp_plugin_t plug) {
-
- gras_trp_file_plug_data_t *file = xbt_new(gras_trp_file_plug_data_t,1);
-
- FD_ZERO(&(file->incoming_socks));
-
- plug->socket_close = gras_trp_file_close;
-
- plug->raw_send = gras_trp_file_chunk_send_raw;
- plug->send = gras_trp_file_chunk_send;
-
- plug->raw_recv = plug->recv = gras_trp_file_chunk_recv;
-
- plug->data = (void*)file;
-}
-
-/**
- * gras_socket_client_from_file:
- *
- * Create a client socket from a file path.
- *
- * This only possible in RL, and is mainly for debugging.
- */
-gras_socket_t
-gras_socket_client_from_file(const char*path) {
- gras_socket_t res;
-
- xbt_assert0(gras_if_RL(),
- "Cannot use file as socket in the simulator");
-
- gras_trp_socket_new(0,&res);
-
- res->plugin=gras_trp_plugin_get_by_name("file");
-
- if (strcmp("-", path)) {
- res->sd = open(path, O_TRUNC|O_WRONLY|O_CREAT | O_BINARY, S_IRUSR|S_IWUSR|S_IRGRP );
-
- if ( res->sd < 0) {
- THROW2(system_error,0,
- "Cannot create a client socket from file %s: %s",
- path, strerror(errno));
- }
- } else {
- res->sd = 1; /* stdout */
- }
-
- DEBUG5("sock_client_from_file(%s): sd=%d in=%c out=%c accept=%c",
- path,
- res->sd,
- res->incoming?'y':'n',
- res->outgoing?'y':'n',
- res->accepting?'y':'n');
-
- xbt_dynar_push(((gras_trp_procdata_t)
- gras_libdata_by_id(gras_trp_libdata_id))->sockets,&res);
- return res;
-}
-
-/**
- * gras_socket_server_from_file:
- *
- * Create a server socket from a file path.
- *
- * This only possible in RL, and is mainly for debugging.
- */
-gras_socket_t gras_socket_server_from_file(const char*path) {
- gras_socket_t res;
-
- xbt_assert0(gras_if_RL(),
- "Cannot use file as socket in the simulator");
-
- gras_trp_socket_new(1,&res);
-
- res->plugin=gras_trp_plugin_get_by_name("file");
-
-
- if (strcmp("-", path)) {
- res->sd = open(path, O_RDONLY | O_BINARY);
-
- if ( res->sd < 0) {
- THROW2(system_error,0,
- "Cannot create a server socket from file %s: %s",
- path, strerror(errno));
- }
- } else {
- res->sd = 0; /* stdin */
- }
-
- DEBUG4("sd=%d in=%c out=%c accept=%c",
- res->sd,
- res->incoming?'y':'n',
- res->outgoing?'y':'n',
- res->accepting?'y':'n');
-
- xbt_dynar_push(((gras_trp_procdata_t)
- gras_libdata_by_id(gras_trp_libdata_id))->sockets,&res);
- return res;
-}
-
-void gras_trp_file_close(gras_socket_t sock){
- gras_trp_file_plug_data_t *data;
-
- if (!sock) return; /* close only once */
- data=sock->plugin->data;
-
- if (sock->sd == 0) {
- DEBUG0("Do not close stdin");
- } else if (sock->sd == 1) {
- DEBUG0("Do not close stdout");
- } else {
- DEBUG1("close file connection %d", sock->sd);
-
- /* forget about the socket */
- FD_CLR(sock->sd, &(data->incoming_socks));
-
- /* close the socket */
- if(close(sock->sd) < 0) {
- WARN2("error while closing file %d: %s",
- sock->sd, strerror(errno));
- }
- }
-}
-
-/**
- * gras_trp_file_chunk_send:
- *
- * Send data on a file pseudo-socket
- */
-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) {
-
- 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, (long int)size);
- status = write(sock->sd, data, (long int)size);
-
- if (status == -1) {
- THROW4(system_error,0,"write(%d,%p,%d) failed: %s",
- sock->sd, data, (int)size,
- strerror(errno));
- }
-
- if (status) {
- size -= status;
- data += status;
- } else {
- THROW0(system_error,0,"file descriptor closed");
- }
- }
-}
-/**
- * gras_trp_file_chunk_recv:
- *
- * Receive data on a file pseudo-socket.
- */
-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");
-
- if (sock->recvd) {
- data[0] = sock->recvd_val;
- sock->recvd = 0;
- got++;
- size--;
- }
-
- while (size) {
- int status = 0;
-
- status = read(sock->sd, data+got, (long int)size);
- DEBUG3("read(%d, %p, %ld);", sock->sd, data+got, size);
-
- if (status < 0) {
- THROW4(system_error,0,"read(%d,%p,%d) failed: %s",
- sock->sd, data+got, (int)size,
- strerror(errno));
- }
-
- if (status) {
- size -= status;
- got += status;
- } else {
- THROW1(system_error,errno,"file descriptor closed after %d bytes",got);
- }
- }
- return got;
-}
-
