+++ /dev/null
-/* File transport - send/receive a bunch of bytes from a file */
-
-/* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team.
- * 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"
-#include "xbt/xbt_socket_private.h"
-#include "gras/Msg/msg_interface.h" /* gras_msg_listener_awake */
-
-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(xbt_socket_t sd);
-
-void gras_trp_file_chunk_send_raw(xbt_socket_t sd,
- const char *data,
- unsigned long int size);
-void gras_trp_file_chunk_send(xbt_socket_t sd, const char *data,
- unsigned long int size, int stable_ignored);
-
-int gras_trp_file_chunk_recv(xbt_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
- ***/
-
-/***
- *** Info about who's speaking
- ***/
-static int gras_trp_file_my_port(xbt_socket_t s) {
- THROW_UNIMPLEMENTED;
-}
-static int gras_trp_file_peer_port(xbt_socket_t s) {
- THROW_UNIMPLEMENTED;
-}
-static const char* gras_trp_file_peer_name(xbt_socket_t s) {
- THROW_UNIMPLEMENTED;
-}
-static const char* gras_trp_file_peer_proc(xbt_socket_t s) {
- THROW_UNIMPLEMENTED;
-}
-static void gras_trp_file_peer_proc_set(xbt_socket_t s,char *name) {
- THROW_UNIMPLEMENTED;
-}
-
-/***
- *** Code
- ***/
-void gras_trp_file_setup(xbt_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->my_port = gras_trp_file_my_port;
- plug->peer_port = gras_trp_file_peer_port;
- plug->peer_name = gras_trp_file_peer_name;
- plug->peer_proc = gras_trp_file_peer_proc;
- plug->peer_proc_set = gras_trp_file_peer_proc_set;
-
- 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.
- */
-xbt_socket_t gras_socket_client_from_file(const char *path)
-{
- xbt_socket_t res;
-
- xbt_assert(gras_if_RL(), "Cannot use file as socket in the simulator");
-
- xbt_socket_new_ext(0, &res, xbt_trp_plugin_get_by_name("file"), 0, 0);
-
- 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) {
- THROWF(system_error, 0,
- "Cannot create a client socket from file %s: %s",
- path, strerror(errno));
- }
- } else {
- res->sd = 1; /* stdout */
- }
-
- XBT_DEBUG("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.
- */
-xbt_socket_t gras_socket_server_from_file(const char *path)
-{
- xbt_socket_t res;
-
- xbt_assert(gras_if_RL(), "Cannot use file as socket in the simulator");
-
- xbt_socket_new_ext(1, &res, xbt_trp_plugin_get_by_name("file"), 0, 0);
-
- if (strcmp("-", path)) {
- res->sd = open(path, O_RDONLY | O_BINARY);
-
- if (res->sd < 0) {
- THROWF(system_error, 0,
- "Cannot create a server socket from file %s: %s",
- path, strerror(errno));
- }
- } else {
- res->sd = 0; /* stdin */
- }
-
- XBT_DEBUG("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);
- gras_msg_listener_awake();
- return res;
-}
-
-void gras_trp_file_close(xbt_socket_t sock)
-{
- gras_trp_file_plug_data_t *data;
-
- if (!sock)
- return; /* close only once */
- data = sock->plugin->data;
-
- if (sock->sd == 0) {
- XBT_DEBUG("Do not close stdin");
- } else if (sock->sd == 1) {
- XBT_DEBUG("Do not close stdout");
- } else {
- XBT_DEBUG("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) {
- XBT_WARN("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(xbt_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(xbt_socket_t sock,
- const char *data, unsigned long int size)
-{
-
- xbt_assert(sock->outgoing, "Cannot write on client file socket");
- xbt_assert(size >= 0, "Cannot send a negative amount of data");
-
- while (size) {
- int status = 0;
-
- XBT_DEBUG("write(%d, %p, %ld);", sock->sd, data, (long int) size);
- status = write(sock->sd, data, (long int) size);
-
- if (status == -1) {
- THROWF(system_error, 0, "write(%d,%p,%d) failed: %s",
- sock->sd, data, (int) size, strerror(errno));
- }
-
- if (status) {
- size -= status;
- data += status;
- } else {
- THROWF(system_error, 0, "file descriptor closed");
- }
- }
-}
-
-/**
- * gras_trp_file_chunk_recv:
- *
- * Receive data on a file pseudo-socket.
- */
-int
-gras_trp_file_chunk_recv(xbt_socket_t sock,
- char *data, unsigned long int size)
-{
-
- int got = 0;
-
- xbt_assert(sock, "Cannot recv on an NULL socket");
- xbt_assert(sock->incoming, "Cannot recv on client file socket");
- xbt_assert(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);
- XBT_DEBUG("read(%d, %p, %ld);", sock->sd, data + got, size);
-
- if (status < 0) {
- THROWF(system_error, 0, "read(%d,%p,%d) failed: %s",
- sock->sd, data + got, (int) size, strerror(errno));
- }
-
- if (status) {
- size -= status;
- got += status;
- } else {
- THROWF(system_error, errno, "file descriptor closed after %d bytes",
- got);
- }
- }
- return got;
-}
