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JAM_LockMB(3) JAM subroutine library JAM_LockMB(3) NAME JAM_LockMB - Lock message base for exclusive access SYNOPSIS #include <jamlib/jam.h> int JAM_LockMB(s_JamBase* Base_PS); DESCRIPTION Locks the currently open message base so that no other programs may modify it. The message base should be locked for only small periods of time, or the performance of tossers and other software may be affected. Arguments Base_PS The message base to lock RETURN VALUE 0 if successful JAM_IO_ERROR if an I/O error occured. see JAM_Errno(3) JAM_LOCK_FAILED if the message base is currently locked by another process JAM_BAD_PARAM if Base_PS is NULL EXAMPLES int Result_I; while (1) { Result_I = JAM_LockMB(Base_PS); if (Result_I) { if (Result_I == JAM_LOCK_FAILED) /* base locked by someone else, wait for unlock */ sleep(1); else { /* error */ printf("JAM_LockMB returned %d.\n", Result_I); return -1; } } } AUTHOR This manual page was created by Sir Raorn <raorn@altlinux.ru>, based on original JAMlib documentation by Bjorn Stenberg <bjorn@haxx.nu> and Jo- han Billing <billing@df.lth.se>. SEE ALSO jamlib(3), JAM_UnlockMB(3), JAM_Errno(3) 2002-11-07 JAM_LockMB(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLES | AUTHOR | SEE ALSO
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