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

# SHM/SEM args: <shm_name> <sem_client_name> <sem_server_name> [iterations]
SHM_NAME        = /myshm
SEM_CLIENT_NAME = /sem_client
SEM_SERVER_NAME = /sem_server
SERVER_ITERS    = 3

all: shm

# ===== POSIX SHM + SEM targets =====
shm: server client

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

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

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

test_clients: shm
	@echo "=== Запуск нескольких клиентов ==="
	echo "abacaba"    | ./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) & \
	echo "xxxxxx"     | ./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) & \
	echo "hello world" | ./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) & \
	wait

# Автотест: сервер в фоне, несколько клиентов
test_all: shm
	@echo "=== Автотест POSIX SHM+SEM ==="
	./server $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) $(SERVER_ITERS) & \
	SRV=$$!; \
	sleep 1; \
	echo "abacaba"     | ./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) & \
	echo "kekekek"     | ./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) & \
	echo "foobar"      | ./client $(SHM_NAME) $(SEM_CLIENT_NAME) $(SEM_SERVER_NAME) & \
	wait; \
	wait $$SRV

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

help:
	@echo "Available targets:"
	@echo "  shm          - Build POSIX SHM+SEM programs"
	@echo "  test_server  - Run SHM+SEM server (clients in another terminal)"
	@echo "  test_clients - Run several client processes"
	@echo "  test_all     - Automatic end-to-end test"
	@echo "  clean        - Remove built files"
	@echo "  help         - Show this help"

.PHONY: all shm test_server test_clients test_all clean help