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boinc/lib/app_ipc.C

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// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation;
// either version 2.1 of the License, or (at your option) any later version.
//
// This software is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#if defined(_WIN32) && !defined(__STDWX_H__) && !defined(_BOINC_WIN_) && !defined(_AFX_STDAFX_H_)
#include "boinc_win.h"
#endif
#ifndef _WIN32
#include "config.h"
#include <cstring>
#include <string>
#endif
#include "parse.h"
#include "error_numbers.h"
#include "str_util.h"
#include "filesys.h"
#include "miofile.h"
#include "app_ipc.h"
using std::string;
const char* xml_graphics_modes[NGRAPHICS_MSGS] = {
"<mode_unsupported/>",
"<mode_hide_graphics/>",
"<mode_window/>",
"<mode_fullscreen/>",
"<mode_blankscreen/>",
"<reread_prefs/>",
"<mode_quit/>"
};
GRAPHICS_MSG::GRAPHICS_MSG() {
memset(this, 0, sizeof(GRAPHICS_MSG));
}
APP_INIT_DATA::APP_INIT_DATA() {
project_preferences = 0;
}
APP_INIT_DATA::~APP_INIT_DATA() {
if (project_preferences) {
free(project_preferences);
project_preferences=0; // paranoia
}
}
APP_INIT_DATA::APP_INIT_DATA(const APP_INIT_DATA& a) {
copy(a);
}
void APP_INIT_DATA::operator=(const APP_INIT_DATA& a) {
copy(a);
}
void APP_INIT_DATA::copy(const APP_INIT_DATA& a) {
memcpy(this, &a, sizeof(APP_INIT_DATA));
if (a.project_preferences) {
project_preferences = strdup(a.project_preferences);
}
}
int write_init_data_file(FILE* f, APP_INIT_DATA& ai) {
char buf[2048];
fprintf(f,
"<app_init_data>\n"
"<major_version>%d</major_version>\n"
"<minor_version>%d</minor_version>\n"
"<release>%d</release>\n"
"<app_version>%d</app_version>\n",
ai.major_version,
ai.minor_version,
ai.release,
ai.app_version
);
if (strlen(ai.app_name)) {
fprintf(f, "<app_name>%s</app_name>\n", ai.app_name);
}
if (strlen(ai.symstore)) {
fprintf(f, "<symstore>%s</symstore>\n", ai.symstore);
}
if (strlen(ai.acct_mgr_url)) {
fprintf(f, "<acct_mgr_url>%s</acct_mgr_url>\n", ai.acct_mgr_url);
}
if (ai.project_preferences && strlen(ai.project_preferences)) {
fprintf(f, "<project_preferences>\n%s</project_preferences>\n", ai.project_preferences);
}
if (strlen(ai.team_name)) {
xml_escape(ai.team_name, buf);
fprintf(f, "<team_name>%s</team_name>\n", buf);
}
if (strlen(ai.user_name)) {
xml_escape(ai.user_name, buf);
fprintf(f, "<user_name>%s</user_name>\n", buf);
}
if (strlen(ai.project_dir)) {
fprintf(f, "<project_dir>%s</project_dir>\n", ai.project_dir);
}
if (strlen(ai.boinc_dir)) {
fprintf(f, "<boinc_dir>%s</boinc_dir>\n", ai.boinc_dir);
}
if (strlen(ai.authenticator)) {
fprintf(f, "<authenticator>%s</authenticator>\n", ai.authenticator);
}
if (strlen(ai.wu_name)) {
fprintf(f, "<wu_name>%s</wu_name>\n", ai.wu_name);
}
#ifdef _WIN32
if (strlen(ai.shmem_seg_name)) {
fprintf(f, "<comm_obj_name>%s</comm_obj_name>\n", ai.shmem_seg_name);
}
#else
fprintf(f, "<shm_key>%d</shm_key>\n", ai.shmem_seg_name);
#endif
fprintf(f,
"<slot>%d</slot>\n"
"<wu_cpu_time>%f</wu_cpu_time>\n"
"<user_total_credit>%f</user_total_credit>\n"
"<user_expavg_credit>%f</user_expavg_credit>\n"
"<host_total_credit>%f</host_total_credit>\n"
"<host_expavg_credit>%f</host_expavg_credit>\n"
"<resource_share_fraction>%f</resource_share_fraction>\n"
"<checkpoint_period>%f</checkpoint_period>\n"
"<fraction_done_update_period>%f</fraction_done_update_period>\n"
"<fraction_done_start>%f</fraction_done_start>\n"
"<fraction_done_end>%f</fraction_done_end>\n"
"<rsc_fpops_est>%f</rsc_fpops_est>\n"
"<rsc_fpops_bound>%f</rsc_fpops_bound>\n"
"<rsc_memory_bound>%f</rsc_memory_bound>\n"
"<rsc_disk_bound>%f</rsc_disk_bound>\n",
ai.slot,
ai.wu_cpu_time,
ai.user_total_credit,
ai.user_expavg_credit,
ai.host_total_credit,
ai.host_expavg_credit,
ai.resource_share_fraction,
ai.checkpoint_period,
ai.fraction_done_update_period,
ai.fraction_done_start,
ai.fraction_done_end,
ai.rsc_fpops_est,
ai.rsc_fpops_bound,
ai.rsc_memory_bound,
ai.rsc_disk_bound
);
MIOFILE mf;
mf.init_file(f);
ai.host_info.write(mf, false);
ai.proxy_info.write(mf);
ai.global_prefs.write(mf);
fprintf(f, "</app_init_data>\n");
return 0;
}
int parse_init_data_file(FILE* f, APP_INIT_DATA& ai) {
char tag[1024];
int retval;
bool flag, is_tag;
MIOFILE mf;
mf.init_file(f);
XML_PARSER xp(&mf);
if (!xp.parse_start("app_init_data")) {
fprintf(stderr, "no start tag in app init data\n");
return ERR_XML_PARSE;
}
if (ai.project_preferences) {
free(ai.project_preferences);
ai.project_preferences = 0;
}
memset(&ai, 0, sizeof(ai));
ai.fraction_done_start = 0;
ai.fraction_done_end = 1;
while (!xp.get(tag, sizeof(tag), is_tag)) {
if (!is_tag) {
fprintf(stderr, "unexpected text in init_data.xml: %s\n", tag);
continue;
}
if (!strcmp(tag, "/app_init_data")) return 0;
if (!strcmp(tag, "project_preferences")) {
retval = dup_element_contents(f, "</project_preferences>", &ai.project_preferences);
if (retval) return retval;
continue;
}
if (!strcmp(tag, "global_preferences")) {
GLOBAL_PREFS_MASK mask;
retval = ai.global_prefs.parse(xp, "", flag, mask);
if (retval) return retval;
continue;
}
if (!strcmp(tag, "host_info")) {
ai.host_info.parse(mf);
continue;
}
if (!strcmp(tag, "proxy_info")) {
ai.proxy_info.parse(mf);
continue;
}
if (xp.parse_int(tag, "major_version", ai.major_version)) continue;
if (xp.parse_int(tag, "minor_version", ai.minor_version)) continue;
if (xp.parse_int(tag, "release", ai.release)) continue;
if (xp.parse_int(tag, "app_version", ai.app_version)) continue;
if (xp.parse_str(tag, "app_name", ai.app_name, sizeof(ai.app_name))) continue;
if (xp.parse_str(tag, "symstore", ai.symstore, sizeof(ai.symstore))) continue;
if (xp.parse_str(tag, "acct_mgr_url", ai.acct_mgr_url, sizeof(ai.acct_mgr_url))) continue;
if (xp.parse_str(tag, "user_name", ai.user_name, sizeof(ai.user_name))) continue;
if (xp.parse_str(tag, "team_name", ai.team_name, sizeof(ai.team_name))) continue;
if (xp.parse_str(tag, "project_dir", ai.project_dir, sizeof(ai.project_dir))) continue;
if (xp.parse_str(tag, "boinc_dir", ai.boinc_dir, sizeof(ai.boinc_dir))) continue;
if (xp.parse_str(tag, "authenticator", ai.authenticator, sizeof(ai.authenticator))) continue;
if (xp.parse_str(tag, "wu_name", ai.wu_name, sizeof(ai.wu_name))) continue;
#ifdef _WIN32
if (xp.parse_str(tag, "comm_obj_name", ai.shmem_seg_name, sizeof(ai.shmem_seg_name))) continue;
#else
if (xp.parse_int(tag, "shm_key", ai.shmem_seg_name)) continue;
#endif
if (xp.parse_int(tag, "slot", ai.slot)) continue;
if (xp.parse_double(tag, "user_total_credit", ai.user_total_credit)) continue;
if (xp.parse_double(tag, "user_expavg_credit", ai.user_expavg_credit)) continue;
if (xp.parse_double(tag, "host_total_credit", ai.host_total_credit)) continue;
if (xp.parse_double(tag, "host_expavg_credit", ai.host_expavg_credit)) continue;
if (xp.parse_double(tag, "resource_share_fraction", ai.resource_share_fraction)) continue;
if (xp.parse_double(tag, "rsc_fpops_est", ai.rsc_fpops_est)) continue;
if (xp.parse_double(tag, "rsc_fpops_bound", ai.rsc_fpops_bound)) continue;
if (xp.parse_double(tag, "rsc_memory_bound", ai.rsc_memory_bound)) continue;
if (xp.parse_double(tag, "rsc_disk_bound", ai.rsc_disk_bound)) continue;
if (xp.parse_double(tag, "wu_cpu_time", ai.wu_cpu_time)) continue;
if (xp.parse_double(tag, "checkpoint_period", ai.checkpoint_period)) continue;
if (xp.parse_double(tag, "fraction_done_update_period", ai.fraction_done_update_period)) continue;
if (xp.parse_double(tag, "fraction_done_start", ai.fraction_done_start)) continue;
if (xp.parse_double(tag, "fraction_done_end", ai.fraction_done_end)) continue;
xp.skip_unexpected(tag, true, "parse_init_data_file");
}
fprintf(stderr, "parse_init_data_file: no end tag\n");
return ERR_XML_PARSE;
}
APP_CLIENT_SHM::APP_CLIENT_SHM() {
shm = 0;
}
bool MSG_CHANNEL::get_msg(char *msg) {
if (!buf[0]) return false;
strlcpy(msg, buf+1, MSG_CHANNEL_SIZE-1);
buf[0] = 0;
return true;
}
bool MSG_CHANNEL::has_msg() {
if (buf[0]) return true;
return false;
}
bool MSG_CHANNEL::send_msg(const char *msg) {
if (buf[0]) return false;
strlcpy(buf+1, msg, MSG_CHANNEL_SIZE-1);
buf[0] = 1;
return true;
}
void MSG_CHANNEL::send_msg_overwrite(const char* msg) {
strlcpy(buf+1, msg, MSG_CHANNEL_SIZE-1);
buf[0] = 1;
}
int APP_CLIENT_SHM::decode_graphics_msg(char* msg, GRAPHICS_MSG& m) {
int i;
parse_str(msg, "<window_station>", m.window_station, sizeof(m.window_station));
parse_str(msg, "<desktop>", m.desktop, sizeof(m.desktop));
parse_str(msg, "<display>", m.display, sizeof(m.display));
m.mode = 0;
for (i=0; i<NGRAPHICS_MSGS; i++) {
if (match_tag(msg, xml_graphics_modes[i])) {
m.mode = i;
}
}
return 0;
}
void APP_CLIENT_SHM::reset_msgs() {
memset(shm, 0, sizeof(SHARED_MEM));
}
// Resolve virtual name (in slot dir) to physical path (in project dir).
// Cases:
// - Windows and pre-6.12 Unix:
// virtual name refers to a "soft link" (XML file acting as symbolic link)
// - 6.12+ Unix:
// virtual name is a symbolic link
// - Standalone: physical path is same as virtual name
//
int boinc_resolve_filename(
const char *virtual_name, char *physical_name, int len
) {
FILE *fp;
char buf[512], *p;
if (!virtual_name) return ERR_NULL;
strlcpy(physical_name, virtual_name, len);
#ifndef _WIN32
if (is_symlink(virtual_name)) {
return 0;
}
#endif
// Open the link file and read the first line
//
fp = boinc_fopen(virtual_name, "r");
if (!fp) return 0;
// must initialize buf since fgets() on an empty file won't do anything
//
buf[0] = 0;
p =fgets(buf, sizeof(buf), fp);
fclose(fp);
// If it's the <soft_link> XML tag, return its value,
// otherwise, return the original file name
//
if (p) parse_str(buf, "<soft_link>", physical_name, len);
return 0;
}
// same, std::string version
//
int boinc_resolve_filename_s(const char *virtual_name, string& physical_name) {
char buf[512], *p;
if (!virtual_name) return ERR_NULL;
physical_name = virtual_name;
#ifndef _WIN32
if (is_symlink(virtual_name)) {
return 0;
}
#endif
FILE *fp = boinc_fopen(virtual_name, "r");
if (!fp) return ERR_FOPEN;
buf[0] = 0;
p = fgets(buf, 512, fp);
fclose(fp);
if (p) parse_str(buf, "<soft_link>", physical_name);
return 0;
}
void url_to_project_dir(char* url, char* dir) {
char buf[256];
escape_project_url(url, buf);
sprintf(dir, "%s/%s", PROJECT_DIR, buf);
}
const char *BOINC_RCSID_3add42d20e = "$Id$";
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