mirror of https://github.com/BOINC/boinc.git
138 lines
4.1 KiB
C++
Executable File
138 lines
4.1 KiB
C++
Executable File
// $Id$
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//
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// The contents of this file are subject to the BOINC Public License
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// Version 1.0 (the "License"); you may not use this file except in
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// compliance with the License. You may obtain a copy of the License at
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// http://boinc.berkeley.edu/license_1.0.txt
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//
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// Software distributed under the License is distributed on an "AS IS"
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// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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// License for the specific language governing rights and limitations
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// under the License.
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//
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// The Original Code is the Berkeley Open Infrastructure for Network Computing.
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//
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// The Initial Developer of the Original Code is the SETI@home project.
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// Portions created by the SETI@home project are Copyright (C) 2002
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// University of California at Berkeley. All Rights Reserved.
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//
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// Contributor(s):
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//
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#ifndef UTIL_H
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#define UTIL_H
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#include <cstdlib>
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#include <ctime>
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#include <cmath>
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#include <cctype>
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#include <cstring>
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#include <algorithm>
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#include <string>
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#if !defined(HAVE_STRLCPY)
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extern size_t strlcpy(char*, const char*, size_t);
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#endif
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#if !defined(HAVE_STRLCAT)
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extern size_t strlcat(char *dst, const char *src, size_t size);
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#endif
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extern int ndays_to_string(double x, int smallest_timescale, char *buf);
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extern void nbytes_to_string(double nbytes, double total_bytes, char* str, int len);
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extern double dtime();
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extern void validate_time(double&);
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extern void boinc_sleep(double);
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extern int parse_command_line( char *, char ** );
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extern void c2x(char *what);
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extern void strip_whitespace(char *str);
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extern void strip_whitespace(std::string&);
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extern void unescape_url(char *url);
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extern void escape_url(char *in, char*out);
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extern void escape_url_readable(char* in, char* out);
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extern bool invalid_url(char*);
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extern void canonicalize_master_url(char *url);
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extern void safe_strncpy(char*, const char*, int);
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#define safe_strcpy(x, y) safe_strncpy(x, y, sizeof(x))
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#define safe_strcat(x, y) if (strlen(x)+strlen(y)<sizeof(x)) strcat(x, y)
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extern char* time_to_string(double);
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extern std::string timediff_format(double);
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extern int read_file_string(const char* pathname, std::string& result);
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inline bool ends_with(std::string const& s, std::string const& suffix) {
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return
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s.size()>=suffix.size() &&
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s.substr(s.size()-suffix.size()) == suffix;
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}
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inline bool starts_with(std::string const& s, std::string const& prefix) {
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return s.substr(0, prefix.size()) == prefix;
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}
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// http://lists.debian.org/debian-gcc/2002/debian-gcc-200204/msg00092.html
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inline void downcase_string(
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std::string::iterator begin, std::string::iterator end, std::string::iterator src
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) {
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std::transform(begin, end, src, (int(*)(int))tolower);
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}
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inline void downcase_string(std::string& w) {
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downcase_string(w.begin(), w.end(), w.begin());
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}
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// NOTE: use #include <functional> to get max,min
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#define SECONDS_PER_DAY 86400
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static inline double drand() {
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return (double)rand()/(double)RAND_MAX;
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}
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// return a random integer in the range [rmin,rmax)
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static inline double rand_range(double rmin, double rmax) {
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if (rmin < rmax) {
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return drand() * (rmax-rmin) + rmin;
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} else {
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return rmin;
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}
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}
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// return a random integer in the range [MIN,min(e^n,MAX))
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//
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extern double calculate_exponential_backoff(
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const char* debug_descr, int n, double MIN, double MAX,
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double factor=1.0
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);
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extern bool debug_fake_exponential_backoff;
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#ifdef _WIN32
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#include <windows.h>
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extern char* windows_error_string(char* pszBuf, int iSize);
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extern char* windows_format_error_string(
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unsigned long dwError, char* pszBuf, int iSize
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);
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extern int boinc_thread_cpu_time(HANDLE thread_handle, double& cpu);
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#endif
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extern void update_average(double, double, double, double&, double&);
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// convert filename to path in a hierarchical directory system
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//
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extern int dir_hier_path(
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const char* filename, const char* root, int fanout, char* result,
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bool create=false
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);
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// convert filename to URL in a hierarchical directory system
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//
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extern int dir_hier_url(
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const char* filename, const char* root, int fanout, char* result
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);
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extern int boinc_calling_thread_cpu_time(double&);
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#endif
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