ESh/esh_types.h

#include <stdio.h>
#include <pthread.h>
#include <time.h>
#include <stdlib.h>
#include <pwd.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <termios.h>

#include <sys/wait.h>

#ifndef ESH_TYPES_H
#define ESH_TYPES_H

typedef enum {
	BACKGROUND,
	FOREGROUND
} ESH_JOB_TYPE;

typedef enum {
	INNER_CMD,
	EXEC_CMD
} ESH_COMMAND_TYPE;

typedef enum {
	NO_CONDITION, // ex. commands delimited by ';' 
	PREVIOUS_EXIT_SUCCESS, // ex. commands delimited by '&&'
	PREVIOUS_EXIT_FAILED // ex. commands delimited by '||'
} ESH_JOB_CONDITION;

typedef enum {
	LOGIC_AND = 1,
	LOGIC_OR = 2,
	SEMICOLON = 3,
	BIT_AND = 4,
	BIT_OR = 5,
	NOT_A_DELIMITER = 0
} ESH_JOB_DELIMITER;

typedef struct {
	char* command;
	char** command_tokens;
	int command_tokens_num;

	ESH_COMMAND_TYPE command_type;
	ESH_JOB_TYPE job_type;
	ESH_JOB_CONDITION job_start_condition;

	pid_t job_pid;

	FILE* job_stdin;
	FILE* job_stdout;
	FILE* job_stderr;

	int stdin_pipe[2];
	int stdout_pipe[2]; // 0 is for writing in child process and for reading in parent process.
	int stderr_pipe[2];	// 1 is for writing in parent process and for reading in child process.
} EShJob;

typedef struct {
	char* build_ref;
	struct passwd* user_data;
	char* current_working_dir;

	char* config_file_path; // path to file, containing configurations (changeable via cmd line args)
	char* history_file_path; // path to file, where entered commands history is stored (changeable via settings/cmd line args)
	int history_limit; // max lines of commands, which can be stored (changeable via settings/cmd line args)
	// TODO: set this to max background jobs limit!
	int max_jobs_number; // max active jobs (foreground & background) limit (changeable via settings/cmd line args)
	int max_command_length; // max length of single command (changeable via settings/cmd line args)
	
	int max_command_tokens; // TODO: max arguments of single command
	int max_command_token_size; // TODO

	char** history_command_list;
	int history_command_list_size;

	int max_invite_message_len;
	char* invite_message;

	int jobs_number;
	EShJob* jobs_list;

	int exited; // used to stop threads on exiting 
} EShInfo;

extern EShInfo* esh_info_global;

#endif // ESH_TYPES_H