test: compress: add mixed compressed/uncompressed data test

compress-test/mix-compress.c

@@ -0,0 +1,87 @@
+#include <assert.h>
+#include <blue/compress/compressor.h>
+#include <blue/compress/cstream.h>
+#include <blue/compress/function.h>
+#include <blue/core/ringbuffer.h>
+#include <blue/core/stream.h>
+#include <stdio.h>
+#include <string.h>
+
+#define NR_ITERATIONS 10
+
+static const char source[]
+	= "Lorem ipsum dolor sit amet, consectetur adipiscing elit. In sodales "
+	  "scelerisque lacus. In ullamcorper sem a nibh venenatis efficitur at "
+	  "id quam. Nam quis urna nulla. In in consectetur ligula. Morbi "
+	  "ligula neque, imperdiet quis erat et, mollis consequat sapien. "
+	  "Vivamus quis bibendum nulla. Vivamus tincidunt mauris sed nisl "
+	  "vulputate pellentesque. Nam blandit ac risus ut auctor. Fusce "
+	  "sagittis quam ut sapien accumsan, pellentesque finibus elit "
+	  "eleifend. Duis sodales ex urna, a porttitor ex bibendum quis quam.";
+
+int main(int argc, const char **argv)
+{
+	if (argc < 2) {
+		fprintf(stderr, "usage: %s <outpath>\n", argv[0]);
+		return -1;
+	}
+
+	const b_compression_function *zstd
+		= b_compression_function_get_by_id(B_COMPRESSOR_FUNCTION_ZSTD);
+	if (!zstd) {
+		fprintf(stderr, "zstd support not enabled\n");
+		return -1;
+	}
+
+	b_compression_mode mode = B_COMPRESSION_MODE_COMPRESS;
+
+	FILE *out_fp = fopen(argv[1], "wb");
+	if (!out_fp) {
+		fprintf(stderr, "cannot open output file %s\n", argv[1]);
+		return -1;
+	}
+
+	b_stream *out_stream = b_stream_open_fp(out_fp);
+	b_cstream *cstream;
+	b_cstream_open(out_stream, zstd, mode, &cstream);
+
+	const size_t source_len = strlen(source);
+	bool compressed = false;
+
+	for (int i = 0; i < NR_ITERATIONS; i++) {
+		if (compressed) {
+			b_cstream_begin_compressed_section(cstream, NULL);
+		}
+
+		size_t nr_written = 0;
+		b_status status = b_cstream_write(
+			cstream, source, source_len, &nr_written);
+		if (!B_OK(status)) {
+			fprintf(stderr, "write error: %s\n",
+			        b_status_description(status));
+			break;
+		}
+
+		size_t nr_written_compressed = 0;
+
+		if (compressed) {
+			b_cstream_end_compressed_section(
+				cstream, &nr_written_compressed, &nr_written);
+		}
+
+		printf("iteration %d: wrote %zu (compressed) / %zu "
+		       "(uncompressed) bytes (%s)\n",
+		       i, nr_written_compressed, nr_written,
+		       compressed ? "compressed" : "uncompressed");
+
+		compressed = !compressed;
+	}
+
+	printf("Done\n");
+
+	b_cstream_close(cstream);
+	b_stream_close(out_stream);
+	fclose(out_fp);
+
+	return 0;
+}

compress-test/mix-decompress.c

@@ -0,0 +1,81 @@
+#include <assert.h>
+#include <blue/compress/compressor.h>
+#include <blue/compress/cstream.h>
+#include <blue/compress/function.h>
+#include <blue/core/ringbuffer.h>
+#include <blue/core/stream.h>
+#include <stdio.h>
+#include <string.h>
+
+int main(int argc, const char **argv)
+{
+	if (argc < 2) {
+		fprintf(stderr, "usage: %s <inpath>\n", argv[0]);
+		return -1;
+	}
+
+	const b_compression_function *zstd
+		= b_compression_function_get_by_id(B_COMPRESSOR_FUNCTION_ZSTD);
+	if (!zstd) {
+		fprintf(stderr, "zstd support not enabled\n");
+		return -1;
+	}
+
+	b_compression_mode mode = B_COMPRESSION_MODE_DECOMPRESS;
+
+	FILE *in_fp = fopen(argv[1], "rb");
+	if (!in_fp) {
+		fprintf(stderr, "cannot open input file %s\n", argv[1]);
+		return -1;
+	}
+
+	b_stream *in_stream = b_stream_open_fp(in_fp);
+	b_cstream *cstream;
+	b_cstream_open(in_stream, zstd, mode, &cstream);
+
+	bool compressed = false;
+	char buf[513];
+
+	for (int i = 0;; i++) {
+		if (compressed) {
+			b_cstream_begin_compressed_section(cstream, NULL);
+		}
+
+		memset(buf, 0x0, sizeof buf);
+
+		size_t nr_read = 0;
+		b_status status
+			= b_cstream_read(cstream, buf, sizeof buf - 1, &nr_read);
+		if (!B_OK(status)) {
+			fprintf(stderr, "write error: %s\n",
+			        b_status_description(status));
+			break;
+		}
+
+		if (nr_read == 0) {
+			break;
+		}
+
+		size_t nr_read_compressed = 0;
+		if (compressed) {
+			b_cstream_end_compressed_section(
+				cstream, &nr_read_compressed, &nr_read);
+		}
+
+		printf(" * iteration %d: read %zu (compressed) / %zu "
+		       "(uncompressed) bytes (%s)\n",
+		       i, nr_read_compressed, nr_read,
+		       compressed ? "compressed" : "uncompressed");
+		printf("%s\n", buf);
+
+		compressed = !compressed;
+	}
+
+	printf("Done\n");
+
+	b_cstream_close(cstream);
+	b_stream_close(in_stream);
+	fclose(in_fp);
+
+	return 0;
+}