From 7b5eb54e54aad01383912d2e67b996402eb9a602 Mon Sep 17 00:00:00 2001
From: David Phillips <dbphillipsnz@gmail.com>
Date: Sat, 6 Jun 2015 23:11:34 +1200
Subject: Updated Makefile, added missing files

---
 fractal-gen.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 fractal-gen.c

(limited to 'fractal-gen.c')

diff --git a/fractal-gen.c b/fractal-gen.c
new file mode 100644
index 0000000..6f3cb5f
--- /dev/null
+++ b/fractal-gen.c
@@ -0,0 +1,78 @@
+#include "fractal-gen.h"
+
+int main(int argc, char **argv)
+{
+	unsigned int size, iterat, cores, i, x, y, s;
+	double power;
+	void *(*generator)(void *);
+
+	// Select correct generator for the fractal type
+	// TO DO: use basename
+	if (strcmp(argv[0], "./mbrot-gen") == 0)
+		generator = &generate_mbrot_section;
+	else if (strcmp(argv[0], "./bship-gen") == 0)
+		generator = &generate_bship_section;
+	else
+		fprintf(stderr, "Don't call this directly, call a symlink to me\n");
+
+	if (argc != 4)
+	{
+		fprintf(stderr, "%s size iterat power\n", argv[0]);
+		return EXIT_FAILURE;
+	}
+
+	size   = atoi(argv[1]);
+	iterat = atoi(argv[2]);
+	power  = atof(argv[3]);
+
+
+	// Fetch number of cores available on machine
+	cores = sysconf(_SC_NPROCESSORS_ONLN);
+
+	assert(size > 0);
+	assert(iterat > 0);
+	assert(cores > 0);
+
+
+
+	// Allocated memory for sections, bailing upon failure
+	data_section* sections = malloc(sizeof(data_section)*cores);
+	if (sections == NULL)
+	{
+		perror("malloc");
+		return EXIT_FAILURE;
+	}
+
+	fprintf(stderr, "Spawning %d threads:\n", cores);
+	// Spawn all the threads! Something something interlacing
+	for (i = 0; i < cores; i++)
+	{
+		// Has to be a better way
+		sections[i].core = i;
+		sections[i].cores = cores;
+		sections[i].size = size;
+		sections[i].power = power;
+		sections[i].iterat = iterat;
+
+		fprintf(stderr, " -> Thread #%d\n", i);
+		pthread_create(&sections[i].thread, NULL, generator, &(sections[i]));
+	}
+
+	// Wait for each thread to complete
+	for (i = 0; i < cores; i++)
+		pthread_join(sections[i].thread, NULL);
+
+	// Vomit the data segments back onto the screen, deinterlacing
+	// TO DO: look at fwrite performance benefits over putchar
+	for (y = 0; y < size; y++)
+		for (x = 0; x < size; x++)
+			putchar(sections[y%cores].data[(y/cores)*size + x]);
+
+	// Free the memory we allocated for point data
+	for (s = 0; s < cores; s++)
+		free(sections[s].data);
+
+	free(sections);
+	fprintf(stderr,"\n");
+	return 0;
+}
-- 
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