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authorDavid Barr <david.barr@cordelta.com>2010-08-09 22:34:42 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-08-15 02:35:37 (GMT)
commit1d73b52f5ba4184de6acf474f14668001304a10c (patch)
treeeab339299282709e45101c011ba57b565278a18e /test-string-pool.c
parent951f316470acc7c785c460a4e40735b22822349f (diff)
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Add string-specific memory pool
Intern strings so they can be compared by address and stored without wasting space. This library uses the macros in the obj_pool.h and trp.h to create a memory pool for strings and expose an API for handling them. [rr: added API docs] [jn: with some API simplifications, new documentation and tests] Signed-off-by: David Barr <david.barr@cordelta.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'test-string-pool.c')
-rw-r--r--test-string-pool.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/test-string-pool.c b/test-string-pool.c
new file mode 100644
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--- /dev/null
+++ b/test-string-pool.c
@@ -0,0 +1,31 @@
+/*
+ * test-string-pool.c: code to exercise the svn importer's string pool
+ */
+
+#include "git-compat-util.h"
+#include "vcs-svn/string_pool.h"
+
+int main(int argc, char *argv[])
+{
+ const uint32_t unequal = pool_intern("does not equal");
+ const uint32_t equal = pool_intern("equals");
+ uint32_t buf[3];
+ uint32_t n;
+
+ if (argc != 2)
+ usage("test-string-pool <string>,<string>");
+
+ n = pool_tok_seq(3, buf, ",-", argv[1]);
+ if (n >= 3)
+ die("too many strings");
+ if (n <= 1)
+ die("too few strings");
+
+ buf[2] = buf[1];
+ buf[1] = (buf[0] == buf[2]) ? equal : unequal;
+ pool_print_seq(3, buf, ' ', stdout);
+ fputc('\n', stdout);
+
+ pool_reset();
+ return 0;
+}