mirror of https://github.com/BOINC/boinc.git
131 lines
4.0 KiB
C++
Executable File
131 lines
4.0 KiB
C++
Executable File
// Berkeley Open Infrastructure for Network Computing
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// http://boinc.berkeley.edu
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// Copyright (C) 2005 University of California
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//
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// This is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation;
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// either version 2.1 of the License, or (at your option) any later version.
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//
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// This software is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// To view the GNU Lesser General Public License visit
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// http://www.gnu.org/copyleft/lesser.html
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// or write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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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 double dday();
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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 valid_master_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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extern bool ends_with(const char*, const char* suffix);
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extern bool starts_with(const char*, const char* prefix);
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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 double 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 double 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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extern int boinc_calling_thread_cpu_time(double&);
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// convert UNIX time to MySQL timestamp (yyyymmddhhmmss)
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//
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extern void mysql_timestamp(double, char*);
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#endif
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