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Annotation of parser3/src/include/pa_os.h, revision 1.12

1.1       paf         1: /** @file
                      2:        Parser: commonly used functions.
                      3: 
1.12    ! moko        4:        Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com)
1.1       paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
                      6: */
                      7: 
                      8: #ifndef PA_OS_H
                      9: #define PA_OS_H
                     10: 
1.12    ! moko       11: #define IDENT_PA_OS_H "$Id: pa_os.h,v 1.11 2017/02/07 22:00:35 moko Exp $"
1.6       misha      12: 
1.7       misha      13: #define PA_LOCK_ATTEMPTS 20
                     14: #define PA_LOCK_WAIT_TIMEOUT_SECS 0
                     15: #define PA_LOCK_WAIT_TIMEOUT_USECS 500000
1.6       misha      16: 
1.10      moko       17: extern unsigned int pa_lock_attempts;
                     18: 
1.6       misha      19: // 'blocking' mean we will wait till other process release lock 
                     20: // but we'll make PA_LOCK_ATTEMPTS attempts with PA_LOCK_WAIT_TIMEOUT secs delaus between attempts 
                     21: // 'nonblocking' mean we will make only 1 attempt without waiting
1.1       paf        22: 
                     23: int pa_lock_shared_blocking(int fd);
                     24: int pa_lock_exclusive_blocking(int fd);
                     25: int pa_lock_exclusive_nonblocking(int fd);
                     26: int pa_unlock(int fd);
                     27: 
1.2       paf        28: /// yields to OS for secs secs and usecs microseconds (1E-6)
1.1       paf        29: int pa_sleep(unsigned long secs, unsigned long usecs);
                     30: 
                     31: #endif