ewah: use less generic macro name

The ewah/ewok.h header pollutes the global namespace with
"BITS_IN_WORD", without any specific notion that we are
talking about the bits in an eword_t. We can give this the
more specific name "BITS_IN_EWORD".

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/ewah/bitmap.c b/ewah/bitmap.c
index 2af94f6a744b35ddb1b9d605ee7b71140062a311..47ad6747c415372da89fa7c88dd8ce03b2765676 100644 (file)
--- a/ewah/bitmap.c
+++ b/ewah/bitmap.c
@@ -20,8 +20,8 @@
 #include "git-compat-util.h"
 #include "ewok.h"
 
-#define EWAH_MASK(x) ((eword_t)1 << (x % BITS_IN_WORD))
-#define EWAH_BLOCK(x) (x / BITS_IN_WORD)
+#define EWAH_MASK(x) ((eword_t)1 << (x % BITS_IN_EWORD))
+#define EWAH_BLOCK(x) (x / BITS_IN_EWORD)
 
 struct bitmap *bitmap_new(void)
 {
@@ -127,7 +127,7 @@ void bitmap_and_not(struct bitmap *self, struct bitmap *other)
 void bitmap_or_ewah(struct bitmap *self, struct ewah_bitmap *other)
 {
        size_t original_size = self->word_alloc;
-       size_t other_final = (other->bit_size / BITS_IN_WORD) + 1;
+       size_t other_final = (other->bit_size / BITS_IN_EWORD) + 1;
        size_t i = 0;
        struct ewah_iterator it;
        eword_t word;
@@ -155,17 +155,17 @@ void bitmap_each_bit(struct bitmap *self, ewah_callback callback, void *data)
                uint32_t offset;
 
                if (word == (eword_t)~0) {
-                       for (offset = 0; offset < BITS_IN_WORD; ++offset)
+                       for (offset = 0; offset < BITS_IN_EWORD; ++offset)
                                callback(pos++, data);
                } else {
-                       for (offset = 0; offset < BITS_IN_WORD; ++offset) {
+                       for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
                                if ((word >> offset) == 0)
                                        break;
 
                                offset += ewah_bit_ctz64(word >> offset);
                                callback(pos + offset, data);
                        }
-                       pos += BITS_IN_WORD;
+                       pos += BITS_IN_EWORD;
                }
        }
 }

diff --git a/ewah/ewah_bitmap.c b/ewah/ewah_bitmap.c
index fccb42b52cbcbbfd2b5ec9f7f535f2e82a327090..b522437c0a0b1ba4906feadeb734542ec941b49a 100644 (file)
--- a/ewah/ewah_bitmap.c
+++ b/ewah/ewah_bitmap.c
@@ -102,7 +102,7 @@ size_t ewah_add_empty_words(struct ewah_bitmap *self, int v, size_t number)
        if (number == 0)
                return 0;
 
-       self->bit_size += number * BITS_IN_WORD;
+       self->bit_size += number * BITS_IN_EWORD;
        return add_empty_words(self, v, number);
 }
 
@@ -152,7 +152,7 @@ void ewah_add_dirty_words(
                        self->buffer_size += can_add;
                }
 
-               self->bit_size += can_add * BITS_IN_WORD;
+               self->bit_size += can_add * BITS_IN_EWORD;
 
                if (number - can_add == 0)
                        break;
@@ -197,7 +197,7 @@ static size_t add_empty_word(struct ewah_bitmap *self, int v)
 
 size_t ewah_add(struct ewah_bitmap *self, eword_t word)
 {
-       self->bit_size += BITS_IN_WORD;
+       self->bit_size += BITS_IN_EWORD;
 
        if (word == 0)
                return add_empty_word(self, 0);
@@ -211,8 +211,8 @@ size_t ewah_add(struct ewah_bitmap *self, eword_t word)
 void ewah_set(struct ewah_bitmap *self, size_t i)
 {
        const size_t dist =
-               (i + BITS_IN_WORD) / BITS_IN_WORD -
-               (self->bit_size + BITS_IN_WORD - 1) / BITS_IN_WORD;
+               (i + BITS_IN_EWORD) / BITS_IN_EWORD -
+               (self->bit_size + BITS_IN_EWORD - 1) / BITS_IN_EWORD;
 
        assert(i >= self->bit_size);
 
@@ -222,19 +222,19 @@ void ewah_set(struct ewah_bitmap *self, size_t i)
                if (dist > 1)
                        add_empty_words(self, 0, dist - 1);
 
-               add_literal(self, (eword_t)1 << (i % BITS_IN_WORD));
+               add_literal(self, (eword_t)1 << (i % BITS_IN_EWORD));
                return;
        }
 
        if (rlw_get_literal_words(self->rlw) == 0) {
                rlw_set_running_len(self->rlw,
                        rlw_get_running_len(self->rlw) - 1);
-               add_literal(self, (eword_t)1 << (i % BITS_IN_WORD));
+               add_literal(self, (eword_t)1 << (i % BITS_IN_EWORD));
                return;
        }
 
        self->buffer[self->buffer_size - 1] |=
-               ((eword_t)1 << (i % BITS_IN_WORD));
+               ((eword_t)1 << (i % BITS_IN_EWORD));
 
        /* check if we just completed a stream of 1s */
        if (self->buffer[self->buffer_size - 1] == (eword_t)(~0)) {
@@ -255,11 +255,11 @@ void ewah_each_bit(struct ewah_bitmap *self, void (*callback)(size_t, void*), vo
                eword_t *word = &self->buffer[pointer];
 
                if (rlw_get_run_bit(word)) {
-                       size_t len = rlw_get_running_len(word) * BITS_IN_WORD;
+                       size_t len = rlw_get_running_len(word) * BITS_IN_EWORD;
                        for (k = 0; k < len; ++k, ++pos)
                                callback(pos, payload);
                } else {
-                       pos += rlw_get_running_len(word) * BITS_IN_WORD;
+                       pos += rlw_get_running_len(word) * BITS_IN_EWORD;
                }
 
                ++pointer;
@@ -268,7 +268,7 @@ void ewah_each_bit(struct ewah_bitmap *self, void (*callback)(size_t, void*), vo
                        int c;
 
                        /* todo: zero count optimization */
-                       for (c = 0; c < BITS_IN_WORD; ++c, ++pos) {
+                       for (c = 0; c < BITS_IN_EWORD; ++c, ++pos) {
                                if ((self->buffer[pointer] & ((eword_t)1 << c)) != 0)
                                        callback(pos, payload);
                        }

diff --git a/ewah/ewok.h b/ewah/ewok.h
index 43adeb5c6893381918ea948efa70b4756f831583..7e311b3cd42c458fe59867da60e6ae1b777e4d0a 100644 (file)
--- a/ewah/ewok.h
+++ b/ewah/ewok.h
@@ -31,7 +31,7 @@
 #endif
 
 typedef uint64_t eword_t;
-#define BITS_IN_WORD (sizeof(eword_t) * 8)
+#define BITS_IN_EWORD (sizeof(eword_t) * 8)
 
 /**
  * Do not use __builtin_popcountll. The GCC implementation

diff --git a/pack-bitmap.c b/pack-bitmap.c
index 91e41015316e8d5c166cdee92c453ec23a483dab..18f0e428b67d3ce043e2e128936cf9ab60bf2cd7 100644 (file)
--- a/pack-bitmap.c
+++ b/pack-bitmap.c
@@ -618,7 +618,7 @@ static void show_objects_for_type(
        while (i < objects->word_alloc && ewah_iterator_next(&filter, &it)) {
                eword_t word = objects->words[i] & filter;
 
-               for (offset = 0; offset < BITS_IN_WORD; ++offset) {
+               for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
                        const unsigned char *sha1;
                        struct revindex_entry *entry;
                        uint32_t hash = 0;
@@ -640,7 +640,7 @@ static void show_objects_for_type(
                        show_reach(sha1, object_type, 0, hash, bitmap_git.pack, entry->offset);
                }
 
-               pos += BITS_IN_WORD;
+               pos += BITS_IN_EWORD;
                i++;
        }
 }
@@ -772,7 +772,7 @@ int reuse_partial_packfile_from_bitmap(struct packed_git **packfile,
                        break;
                }
 
-               reuse_objects += BITS_IN_WORD;
+               reuse_objects += BITS_IN_EWORD;
        }
 
 #ifdef GIT_BITMAP_DEBUG
@@ -995,7 +995,7 @@ static int rebuild_bitmap(uint32_t *reposition,
        while (ewah_iterator_next(&word, &it)) {
                uint32_t offset, bit_pos;
 
-               for (offset = 0; offset < BITS_IN_WORD; ++offset) {
+               for (offset = 0; offset < BITS_IN_EWORD; ++offset) {
                        if ((word >> offset) == 0)
                                break;
 
@@ -1008,7 +1008,7 @@ static int rebuild_bitmap(uint32_t *reposition,
                                return -1;
                }
 
-               pos += BITS_IN_WORD;
+               pos += BITS_IN_EWORD;
        }
        return 0;
 }