Introduce "libcrystfel"

1 files changed, 71 insertions, 0 deletions

diff --git a/libcrystfel/src/thread-pool.h b/libcrystfel/src/thread-pool.h
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+/*
+ * thread-pool.h
+ *
+ * A thread pool implementation
+ *
+ * (c) 2006-2010 Thomas White <taw@physics.org>
+ *
+ * Part of CrystFEL - crystallography with a FEL
+ *
+ */
+
+
+#ifndef THREAD_POOL_H
+#define THREAD_POOL_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+#include <pthread.h>
+
+extern pthread_mutex_t stderr_lock;
+extern signed int get_status_label(void);
+
+
+/**
+ * TPGetTaskFunc:
+ * @qargs: The queue_args pointer which was given to run_threads().
+ * Returns: A pointer which will be passed to the worker function.
+ *
+ * This function is called, non-reentrantly, to get a new work item to give to
+ * your work function.  The stuff you need to generate the new work item should
+ * have been stored in @qargs which was passed to run_threads().
+ *
+ **/
+typedef void *(*TPGetTaskFunc)(void *qargs);
+
+
+/**
+ * TPWorkFunc:
+ * @work: The queue_args pointer which was given to run_threads().
+ * @cookie: A small integral number which is guaranteed to be unique among all
+ * currently running threads.
+ *
+ * This function is called, reentrantly, for each work item.
+ *
+ **/
+typedef void (*TPWorkFunc)(void *work, int cookie);
+
+
+/**
+ * TPFinalFunc:
+ * @qargs: The queue_args pointer which was given to run_threads().
+ * @work: The pointer which was returned by your get_task function.
+ *
+ * This function is called, non-reentrantly, after each work item has been
+ * completed.  A typical use might be to update some counters inside @qargs
+ * according to fields withing @work which were filled by your 'work' function.
+ *
+ **/
+typedef void (*TPFinalFunc)(void *qargs, void *work);
+
+
+extern int run_threads(int n_threads, TPWorkFunc work,
+                       TPGetTaskFunc get_task, TPFinalFunc final,
+                       void *queue_args, int max,
+                       int cpu_num, int cpu_groupsize, int cpu_offset);
+
+
+#endif	/* THREAD_POOL_H */