Exec Utils

Functions used in exec that are simple utils. More...

Functions
size_t	count_commands (t_command *command)
	Cound the number of commands in the command structure.
int	safe_close (int *fd)
	Safely close fd.
void	dup_and_close (t_garbage *garbage, int oldfd, int newfd)
	Special dup2 that also closes the old fd.
void	execute_pipeline (t_data *data, pid_t *pids, size_t *count)
	Execute all the command that are followed by pipes.
void	fill_toks_into_commands (t_data *data, t_command *command)
void	search_path (t_data *data, t_command *command)
	Search path for the designated command.
void	search_paths (t_data *data, t_command *command)
	Search Path for all commands.
void	wait_all_childs (t_command *command, pid_t *pids)
	Waits for all the childs with their pids.

Detailed Description

Functions used in exec that are simple utils.

Function Documentation

count_commands()

size_t count_commands

(

t_command *

command

)

Cound the number of commands in the command structure.

Parameters

command

command structure

Returns

size_t number of commands

dup_and_close()

void dup_and_close	(	t_garbage *	garbage,
		int	oldfd,
		int	newfd )

Special dup2 that also closes the old fd.

Parameters

garbage	garbage structure
oldfd	fd that will overwrite newfd and will be close
newfd	fd to overwrite by oldfd

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execute_pipeline()

void execute_pipeline	(	t_data *	data,
		pid_t *	pids,
		size_t *	count )

Execute all the command that are followed by pipes.

Parameters

data	data structure
pids	array of pids of childs
count	pointer to count the number of commands

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fill_toks_into_commands()

void fill_toks_into_commands	(	t_data *	data,
		t_command *	command )

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safe_close()

int safe_close

(

int *

fd

)

Safely close fd.

Parameters

fd	file descriptor to close

Returns

0 no error, 1 ERROR

search_path()

void search_path	(	t_data *	data,
		t_command *	command )

Search path for the designated command.

Parameters

data	data structure
command	command structure

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search_paths()

void search_paths	(	t_data *	data,
		t_command *	command )

Search Path for all commands.

Parameters

data	data structure
command	command structure

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wait_all_childs()

void wait_all_childs	(	t_command *	command,
		pid_t *	pids )

Waits for all the childs with their pids.

Parameters

command	command structure
pids	array of pids of childs

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