©2004 by Marc J. Rochkind. All rights reserved. Portions marked "Open Source" may be copied under license.

 

                 

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c7/f1.c File Reference

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Detailed Description

File locking (bad example) [Sec. 7.11.1].

Definition in file f1.c.

Go to the source code of this file.

Compounds
struct	rec
Defines
#define	DBNAME   "termdb"
Functions
bool	readrec (int dbfd, struct rec *r, off_t off)
bool	writerec (int dbfd, struct rec *r, off_t off)
bool	store (int dbfd, int data)
void	process1 (void)
void	process2 (void)
int	main (void)

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Define Documentation

#define DBNAME   "termdb"

Definition at line 90 of file f1.c. Referenced by process1(), and process2().

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Function Documentation

int main (  void   )

Definition at line 143 of file f1.c. References EC_CLEANUP_BGN, EC_CLEANUP_END, ec_neg1, exit(), fork(), process1(), process2(), and waitpid().

void process1 (  void   )  [static]

Definition at line 92 of file f1.c. References close(), DBNAME, EC_CLEANUP_BGN, EC_CLEANUP_END, ec_false, ec_neg1, exit(), open(), PERM_FILE, store(), and writerec(). Referenced by main().

void process2 (  void   )  [static]

Definition at line 110 of file f1.c. References close(), DBNAME, EC_CLEANUP_BGN, EC_CLEANUP_END, EC_FAIL, ec_false, ec_neg1, errno, exit(), open(), rec::r_data, rec::r_next, and readrec(). Referenced by main().

bool readrec (  int  dbfd, struct rec *  r, off_t  off )

Definition at line 28 of file f1.c. References EC_CLEANUP_BGN, EC_CLEANUP_END, EC_FAIL, errno, and pread().

bool store (  int  dbfd, int  data )

Definition at line 62 of file f1.c. References EC_CLEANUP_BGN, EC_CLEANUP_END, ec_false, ec_neg1, lseek(), rec::r_data, rec::r_next, readrec(), usleep(), and writerec().

bool writerec (  int  dbfd, struct rec *  r, off_t  off )

Definition at line 45 of file f1.c. References EC_CLEANUP_BGN, EC_CLEANUP_END, EC_FAIL, errno, and pwrite().

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