Commit e7eb052

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Use common library header file for zombie killing method.

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Lines changed: 1 addition & 30 deletions

Original file line number	Diff line number	Diff line change
`@@ -2,44 +2,15 @@`
`2`	`2`	`#include <stdio.h>`
`3`	`3`	`#include <stdlib.h>`
`4`	`4`	`#include <unistd.h>`
`5`		`-#include <sys/wait.h>`
`6`	`5`
`7`		`-#defineEXIT_FAILURE 1`
	`6`	`+#include"Common.h"`
`8`	`7`
`9`	`8`	`// To compile:`
`10`	`9`	`// gcc -std=gnu99 "01 - Signals_SIGCHLD.c" -o signals_sigchld`
`11`	`10`
`12`	`11`	`// Task:`
`13`	`12`	`// Create a program which creates a child process and handles SIGCHLD signal from its childs.`
`14`	`13`
`15`		`-void kill_child_handler(int sig)`
`16`		`-{`
`17`		`- int status;`
`18`		`- pid_t done = waitpid(`
`19`		`- -1, // Any child`
`20`		`- &status,`
`21`		`- 0); // Blocked mode.`
`22`		`- if (done == -1)`
`23`		`- {`
`24`		`- printf("No more child processes.\n");`
`25`		`- }`
`26`		`- else`
`27`		`- {`
`28`		`- short isNormalTermination = WIFEXITED(status);`
`29`		`- if (!isNormalTermination \|\|`
`30`		`- // WEXITSTATUS should be used only if normal termination = true.`
`31`		`- (isNormalTermination && WEXITSTATUS(status) != 0))`
`32`		`- {`
`33`		`- printf("Zombie for PID -- %d failed.\n", done);`
`34`		`- exit(EXIT_FAILURE);`
`35`		`- }`
`36`		`- else`
`37`		`- {`
`38`		`- printf("Zombie for PID -- %d successfully removed.\n", done);`
`39`		`- }`
`40`		`- }`
`41`		`-}`
`42`		`-`
`43`	`14`	`int main()`
`44`	`15`	`{`
`45`	`16`	`pid_t main_pid = getpid();`

Lines changed: 1 addition & 2 deletions

Lines changed: 1 addition & 29 deletions

Original file line number	Diff line number	Diff line change
`@@ -5,45 +5,17 @@`
`5`	`5`	`#include <string.h>`
`6`	`6`	`#include <unistd.h>`
`7`	`7`	`#include <sys/file.h>`
`8`		`-#include <sys/wait.h>`
`9`	`8`	`#include <sys/types.h>`
`10`	`9`	`#include <sys/stat.h>`
`11`	`10`
`12`		`-#defineEXIT_FAILURE 1`
	`11`	`+#include"Common.h"`
`13`	`12`
`14`	`13`	`// Compilation:`
`15`	`14`	`// gcc "02 - Flock.c" -o flockc`
`16`	`15`
`17`	`16`	`// This program imitates work of 3 processes (parent and 2 childs) with some file with flock-blocking, which means`
`18`	`17`	`// that 2 processes cannot both write into file, but can both read file in the same time. However it cannot write and read in the same time.`
`19`	`18`
`20`		`-void kill_child_handler(int sig)`
`21`		`-{`
`22`		`- int status;`
`23`		`- pid_t done = waitpid(-1, // Any child`
`24`		`- &status,`
`25`		`- 0); // Blocked mode.`
`26`		`- if (done == -1)`
`27`		`- {`
`28`		`- printf("No more child processes.\n");`
`29`		`- }`
`30`		`- else`
`31`		`- {`
`32`		`- short isNormalTermination = WIFEXITED(status);`
`33`		`- if (!isNormalTermination \|\|`
`34`		`- // WEXITSTATUS should be used only if normal termination = true.`
`35`		`- (isNormalTermination && WEXITSTATUS(status) != 0))`
`36`		`- {`
`37`		`- printf("Zombie for PID -- %d failed.\n", done);`
`38`		`- exit(EXIT_FAILURE);`
`39`		`- }`
`40`		`- else`
`41`		`- {`
`42`		`- printf("Zombie for PID -- %d successfully removed.\n", done);`
`43`		`- }`
`44`		`- }`
`45`		`-}`
`46`		`-`
`47`	`19`	`int lock_write()`
`48`	`20`	`{`
`49`	`21`	`int fd;`

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