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118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
#ifndef HV_MAIN_H_
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#define HV_MAIN_H_
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#include "hexport.h"
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#include "hplatform.h"
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#include "hdef.h"
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#include "hproc.h"
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#ifdef _MSC_VER
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#pragma comment(lib, "winmm.lib") // for timeSetEvent
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#endif
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BEGIN_EXTERN_C
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typedef struct main_ctx_s {
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char run_dir[MAX_PATH];
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char program_name[MAX_PATH];
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char confile[MAX_PATH]; // default etc/${program}.conf
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char pidfile[MAX_PATH]; // default logs/${program}.pid
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char logfile[MAX_PATH]; // default logs/${program}.log
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pid_t pid; // getpid
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pid_t oldpid; // getpid_from_pidfile
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// arg
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int argc;
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int arg_len;
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char** os_argv;
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char** save_argv;
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char* cmdline;
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// parsed arg
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int arg_kv_size;
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char** arg_kv;
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int arg_list_size;
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char** arg_list;
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// env
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int envc;
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int env_len;
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char** os_envp;
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char** save_envp;
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// signals
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procedure_t reload_fn;
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void* reload_userdata;
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// master workers model
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int worker_processes;
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int worker_threads;
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procedure_t worker_fn;
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void* worker_userdata;
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proc_ctx_t* proc_ctxs;
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} main_ctx_t;
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// arg_type
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#define NO_ARGUMENT 0
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#define REQUIRED_ARGUMENT 1
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#define OPTIONAL_ARGUMENT 2
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// option define
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#define OPTION_PREFIX '-'
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#define OPTION_DELIM '='
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#define OPTION_ENABLE "1"
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#define OPTION_DISABLE "0"
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typedef struct option_s {
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char short_opt;
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const char* long_opt;
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int arg_type;
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} option_t;
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HV_EXPORT int main_ctx_init(int argc, char** argv);
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HV_EXPORT void main_ctx_free(void);
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// ls -a -l
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// ls -al
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// watch -n 10 ls
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// watch -n10 ls
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HV_EXPORT int parse_opt(int argc, char** argv, const char* opt);
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// gcc -g -Wall -O3 -std=cpp main.c
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HV_EXPORT int parse_opt_long(int argc, char** argv, const option_t* long_options, int size);
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HV_EXPORT const char* get_arg(const char* key);
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HV_EXPORT const char* get_env(const char* key);
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#if defined(OS_UNIX) && !HAVE_SETPROCTITLE
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HV_EXPORT void setproctitle(const char* fmt, ...);
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#endif
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// pidfile
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HV_EXPORT int create_pidfile();
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HV_EXPORT void delete_pidfile(void);
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HV_EXPORT pid_t getpid_from_pidfile();
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// signal=[start,stop,restart,status,reload]
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HV_EXPORT int signal_init(procedure_t reload_fn DEFAULT(NULL), void* reload_userdata DEFAULT(NULL));
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HV_EXPORT void signal_handle(const char* signal);
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#ifdef OS_UNIX
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// we use SIGTERM to quit process, SIGUSR1 to reload confile
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#define SIGNAL_TERMINATE SIGTERM
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#define SIGNAL_RELOAD SIGUSR1
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void signal_handler(int signo);
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#endif
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// global var
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#define DEFAULT_WORKER_PROCESSES 4
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#define MAXNUM_WORKER_PROCESSES 256
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HV_EXPORT extern main_ctx_t g_main_ctx;
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// master-workers processes
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HV_EXPORT int master_workers_run(
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procedure_t worker_fn,
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void* worker_userdata DEFAULT(NULL),
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int worker_processes DEFAULT(DEFAULT_WORKER_PROCESSES),
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int worker_threads DEFAULT(0),
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bool wait DEFAULT(true));
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END_EXTERN_C
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#endif // HV_MAIN_H_
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