From a9a78c62c424f1d5fa6f5065d082aedffc17fe0e Mon Sep 17 00:00:00 2001
From: Augusto Gunsch <augustogunsch@tutanota.com>
Date: Thu, 31 Dec 2020 20:12:31 -0300
Subject: [PATCH] Add threads.c

---
 Makefile       |  2 +-
 main.c         | 70 +-------------------------------------------------
 misc/threads.c | 62 ++++++++++++++++++++++++++++++++++++++++++++
 misc/threads.h | 24 +++++++++++++++++
 4 files changed, 88 insertions(+), 70 deletions(-)
 create mode 100644 misc/threads.c
 create mode 100644 misc/threads.h

diff --git a/Makefile b/Makefile
index 6340dcc..dcae36a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 FILES = *.c */*.c
 LIBRARIES = -lpthread
 INCLUDES = -I. -I./parser/ -I./compiler/ -I./vm/ -I./tokenizer/ -I./misc/
-CFLAGS = -std=c99 -g
+CFLAGS = -std=c99 -Wall
 OUTFILE = jack-compiler
 
 main: ${FILES}
diff --git a/main.c b/main.c
index 0f80feb..8213f1f 100644
--- a/main.c
+++ b/main.c
@@ -2,81 +2,13 @@
 #include <errno.h>
 #include <string.h>
 #include <stdlib.h>
-#include <pthread.h>
-#include <unistd.h>
+#include "threads.h"
 #include "parser.h"
 #include "compiler.h"
 #include "io.h"
 #include "os.h"
 
-typedef struct unit {
-	FILELIST* file;
-	TOKEN* tokens;
-	CLASS* parsed;
-	COMPILER* compiler;
-	LINEBLOCK* compiled;
-	struct unit* next;
-} COMPILEUNIT;
-
-void* parseunit(void* input) {
-	COMPILEUNIT* unit = (COMPILEUNIT*)input;
-
-	unit->parsed = parse(unit->tokens, unit->file->name);
-
-	pthread_exit(NULL);
-}
-
-void* compileunit(void* input) {
-	COMPILEUNIT* unit = (COMPILEUNIT*)input;
-
-	unit->compiled = compileclass(unit->compiler, unit->parsed);
-
-	pthread_exit(NULL);
-}
-
-void waitthreads(pthread_t* threads, int amount) {
-	void* status;
-	int code;
-	for(int i = 0; i < amount; i++) {
-		code = pthread_join(threads[i], &status);
-		if(code) {
-			eprintf("Error while joining thread %i: %s\n", i, strerror(code));
-			exit(code);
-		}
-	}
-}
-
-void actonunits(COMPILEUNIT* units, void*(*fun)(void*)) {
-	pthread_t mythreads[_SC_THREAD_THREADS_MAX];
-	pthread_attr_t attr;
-	pthread_attr_init(&attr);
-	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
-
-	COMPILEUNIT* curr = units;
-
-	int i;
-	int code;
-	do {
-		i = 0;
-		while(curr != NULL && i < _SC_THREAD_THREADS_MAX) {
-			code = pthread_create(&mythreads[i], &attr, fun, curr);
-
-			if(code) {
-				eprintf("Error while creating thread %i: %s\n", i, strerror(code));
-				exit(code);
-			}
-
-			curr = curr->next;
-			i++;
-		}
-		waitthreads(mythreads, i);
-	} while(i == _SC_THREAD_THREADS_MAX);
-
-	pthread_attr_destroy(&attr);
-}
-
 int main(int argc, char* argv[]) {
-
 	if(argc < 2) {
 		eprintf("Usage: %s {input file(s)}\n", argv[0]);
 		return 1;
diff --git a/misc/threads.c b/misc/threads.c
new file mode 100644
index 0000000..e34aa69
--- /dev/null
+++ b/misc/threads.c
@@ -0,0 +1,62 @@
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include "threads.h"
+
+void* parseunit(void* input) {
+	COMPILEUNIT* unit = (COMPILEUNIT*)input;
+
+	unit->parsed = parse(unit->tokens, unit->file->name);
+
+	pthread_exit(NULL);
+}
+
+void* compileunit(void* input) {
+	COMPILEUNIT* unit = (COMPILEUNIT*)input;
+
+	unit->compiled = compileclass(unit->compiler, unit->parsed);
+
+	pthread_exit(NULL);
+}
+
+void waitthreads(pthread_t* threads, int amount) {
+	void* status;
+	int code;
+	for(int i = 0; i < amount; i++) {
+		code = pthread_join(threads[i], &status);
+		if(code) {
+			eprintf("Error while joining thread %i: %s\n", i, strerror(code));
+			exit(code);
+		}
+	}
+}
+
+void actonunits(COMPILEUNIT* units, void*(*fun)(void*)) {
+	pthread_t mythreads[_SC_THREAD_THREADS_MAX];
+	pthread_attr_t attr;
+	pthread_attr_init(&attr);
+	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
+
+	COMPILEUNIT* curr = units;
+
+	int i;
+	int code;
+	do {
+		i = 0;
+		while(curr != NULL && i < _SC_THREAD_THREADS_MAX) {
+			code = pthread_create(&mythreads[i], &attr, fun, curr);
+
+			if(code) {
+				eprintf("Error while creating thread %i: %s\n", i, strerror(code));
+				exit(code);
+			}
+
+			curr = curr->next;
+			i++;
+		}
+		waitthreads(mythreads, i);
+	} while(i == _SC_THREAD_THREADS_MAX);
+
+	pthread_attr_destroy(&attr);
+}
diff --git a/misc/threads.h b/misc/threads.h
new file mode 100644
index 0000000..fbbf106
--- /dev/null
+++ b/misc/threads.h
@@ -0,0 +1,24 @@
+#ifndef THREADS_H
+#define THREADS_H
+#include <pthread.h>
+#include "parser.h"
+#include "compiler.h"
+#include "io.h"
+
+/* threads
+ * Tools for dealing with the compiling pipeline in a parallel way */
+
+typedef struct unit {
+	FILELIST* file;
+	TOKEN* tokens;
+	CLASS* parsed;
+	COMPILER* compiler;
+	LINEBLOCK* compiled;
+	struct unit* next;
+} COMPILEUNIT;
+
+void* parseunit(void* input);
+void* compileunit(void* input);
+void waitthreads(pthread_t* threads, int amount);
+void actonunits(COMPILEUNIT* units, void*(*fun)(void*));
+#endif