CC       = gcc
CFLAGS   = -Wall -Wextra -std=c99 -g
LDFLAGS_IPC = -lrt -pthread

SHM_NAME        ?= /myshm
SEM_CLIENT_NAME ?= /sem_client
SEM_SERVER_NAME ?= /sem_server
SERVER_ITERS    ?= 1000

all: shm

shm: server client

server: server.c
	$(CC) $(CFLAGS) -o $@ $< $(LDFLAGS_IPC)

client: client.c
	$(CC) $(CFLAGS) -o $@ $< $(LDFLAGS_IPC)

test_server: shm
	@echo "=== Запуск сервера POSIX SHM+SEM ==="
	@echo "В другом терминале выполните: make test_client"
	./server $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) $(SERVER_ITERS)

test_client: shm
	@echo "=== Запуск клиента, чтение input.txt, вывод на stdout ==="
	./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME)

test_all: shm
	@echo "=== Автотест POSIX SHM+SEM с файлами input.txt/output.txt ==="
	./server $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) $(SERVER_ITERS) & \
	SRV=$$!; \
	sleep 1; \
	./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME); \
	wait $$SRV

clean:
	@echo "Очистка..."
	rm -f server client
	rm -f output.txt

help:
	@echo "Available targets:"
	@echo "  shm          - Build POSIX SHM+SEM programs"
	@echo "  test_server  - Run SHM+SEM server (client in another terminal)"
	@echo "  test_client  - Run client reading input.txt"
	@echo "  test_all     - Automatic end-to-end test with input.txt/output.txt"
	@echo "  clean        - Remove built files"
	@echo "  help         - Show this help"

.PHONY: all shm test_server test_client test_all clean help