From eac073d479dfbe5ecf9c5fc7180f7b29da6d1298 Mon Sep 17 00:00:00 2001
From: "Rafael G. Martins" <rafael@rafaelmartins.eng.br>
Date: Fri, 21 Dec 2018 03:55:00 +0100
Subject: wip

---
 src/common/error.c          |  3 ++
 src/common/error.h          |  1 +
 src/common/thread.h         | 23 +++++++++++++
 src/common/thread_pthread.c | 82 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 109 insertions(+)
 create mode 100644 src/common/thread.h
 create mode 100644 src/common/thread_pthread.c

(limited to 'src/common')

diff --git a/src/common/error.c b/src/common/error.c
index 4538c01..a3a08e7 100644
--- a/src/common/error.c
+++ b/src/common/error.c
@@ -118,6 +118,9 @@ bc_error_print(bc_error_t *err, const char *prefix)
         case BC_ERROR_FILE:
             fprintf(stderr, "error: file: %s\n", err->msg);
             break;
+        case BC_ERROR_THREAD:
+            fprintf(stderr, "error: thread: %s\n", err->msg);
+            break;
         case BLOGC_ERROR_SOURCE_PARSER:
             fprintf(stderr, "error: source: %s\n", err->msg);
             break;
diff --git a/src/common/error.h b/src/common/error.h
index a567c6d..2aac439 100644
--- a/src/common/error.h
+++ b/src/common/error.h
@@ -17,6 +17,7 @@ typedef enum {
     // errors for src/common
     BC_ERROR_CONFIG_PARSER = 1,
     BC_ERROR_FILE,
+    BC_ERROR_THREAD,
 
     // errors for src/blogc
     BLOGC_ERROR_SOURCE_PARSER = 100,
diff --git a/src/common/thread.h b/src/common/thread.h
new file mode 100644
index 0000000..850d375
--- /dev/null
+++ b/src/common/thread.h
@@ -0,0 +1,23 @@
+/*
+ * blogc: A blog compiler.
+ * Copyright (C) 2014-2018 Rafael G. Martins <rafael@rafaelmartins.eng.br>
+ *
+ * This program can be distributed under the terms of the BSD License.
+ * See the file LICENSE.
+ */
+
+#ifndef _THREAD_H
+#define _THREAD_H
+
+#include <stdbool.h>
+
+typedef void* (*bc_thread_func_t) (void *arg);
+
+typedef struct _bc_thread_t bc_thread_t;
+
+bc_thread_t* bc_thread_create(bc_thread_func_t func, void *arg, bool detached,
+    bc_error_t **err);
+void bc_thread_join(bc_thread_t *thread, bc_error_t **err);
+void bc_thread_free(bc_thread_t *thread);
+
+#endif /* _THREAD_H */
diff --git a/src/common/thread_pthread.c b/src/common/thread_pthread.c
new file mode 100644
index 0000000..a85a0c7
--- /dev/null
+++ b/src/common/thread_pthread.c
@@ -0,0 +1,82 @@
+/*
+ * blogc: A blog compiler.
+ * Copyright (C) 2014-2018 Rafael G. Martins <rafael@rafaelmartins.eng.br>
+ *
+ * This program can be distributed under the terms of the BSD License.
+ * See the file LICENSE.
+ */
+
+#include <stdbool.h>
+#include <string.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include "error.h"
+#include "utils.h"
+#include "thread.h"
+
+struct _bc_thread_t {
+    pthread_t thread;
+};
+
+
+bc_thread_t*
+bc_thread_create(bc_thread_func_t func, void *arg, bool detached, bc_error_t **err)
+{
+    if (err == NULL || *err != NULL)
+        return NULL;
+
+    int r;
+
+    pthread_attr_t attr;
+    pthread_attr_t *attrp = NULL;
+
+    if (detached) {
+
+        if (0 != (r = pthread_attr_init(&attr))) {
+            *err = bc_error_new_printf(BC_ERROR_THREAD,
+                "Failed to initialize thread attributes: %s", strerror(r));
+            return NULL;
+        }
+
+        if (0 != (r = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED))) {
+            *err = bc_error_new_printf(BC_ERROR_THREAD,
+                "Failed to mark thread as detached: %s", strerror(r));
+            return NULL;
+        }
+
+        attrp = &attr;
+    }
+
+    bc_thread_t *rv = bc_malloc(sizeof(bc_thread_t));
+
+    if (0 != (r = pthread_create(&(rv->thread), attrp, func, arg))) {
+        *err = bc_error_new_printf(BC_ERROR_THREAD,
+            "Failed to create thread: %s", strerror(r));
+        free(rv);
+        return NULL;
+    }
+
+    return rv;
+}
+
+
+void
+bc_thread_join(bc_thread_t *thread, bc_error_t **err)
+{
+    if (thread == NULL || err == NULL || *err != NULL)
+        return;
+
+    int r;
+
+    if (0 != (r = pthread_join(thread->thread, NULL))) {
+        *err = bc_error_new_printf(BC_ERROR_THREAD,
+            "Failed to join thread: %s", strerror(r));
+    }
+}
+
+
+void
+bc_thread_free(bc_thread_t *thread)
+{
+    free(thread);
+}
-- 
cgit v1.2.3-18-g5258