Merge pull request #4562 from ctiller/ints

Switch to using C99 types for fixed size integers

18 files changed, 89 insertions, 89 deletions

diff --git a/src/core/support/alloc.c b/src/core/support/alloc.c
index ca72379b1d..0a064b2c18 100644
--- a/src/core/support/alloc.c
+++ b/src/core/support/alloc.c
@@ -82,7 +82,7 @@ void *gpr_malloc_aligned(size_t size, size_t alignment_log) {
   size_t alignment = ((size_t)1) << alignment_log;
   size_t extra = alignment - 1 + sizeof(void *);
   void *p = gpr_malloc(size + extra);
-  void **ret = (void **)(((gpr_uintptr)p + extra) & ~(alignment - 1));
+  void **ret = (void **)(((uintptr_t)p + extra) & ~(alignment - 1));
   ret[-1] = p;
   return (void *)ret;
 }
diff --git a/src/core/support/cpu_posix.c b/src/core/support/cpu_posix.c
index 55d92c0555..5edb87d67f 100644
--- a/src/core/support/cpu_posix.c
+++ b/src/core/support/cpu_posix.c
@@ -48,7 +48,7 @@ static long ncpus = 0;
 
 static void init_ncpus() {
   ncpus = sysconf(_SC_NPROCESSORS_ONLN);
-  if (ncpus < 1 || ncpus > GPR_UINT32_MAX) {
+  if (ncpus < 1 || ncpus > UINT32_MAX) {
     gpr_log(GPR_ERROR, "Cannot determine number of CPUs: assuming 1");
     ncpus = 1;
   }
diff --git a/src/core/support/histogram.c b/src/core/support/histogram.c
index 77b48af996..20ed2b14b1 100644
--- a/src/core/support/histogram.c
+++ b/src/core/support/histogram.c
@@ -66,7 +66,7 @@ struct gpr_histogram {
   /* number of buckets */
   size_t num_buckets;
   /* the buckets themselves */
-  gpr_uint32 *buckets;
+  uint32_t *buckets;
 };
 
 /* determine a bucket index given a value - does no bounds checking */
@@ -102,8 +102,8 @@ gpr_histogram *gpr_histogram_create(double resolution,
   h->num_buckets = bucket_for_unchecked(h, max_bucket_start) + 1;
   GPR_ASSERT(h->num_buckets > 1);
   GPR_ASSERT(h->num_buckets < 100000000);
-  h->buckets = gpr_malloc(sizeof(gpr_uint32) * h->num_buckets);
-  memset(h->buckets, 0, sizeof(gpr_uint32) * h->num_buckets);
+  h->buckets = gpr_malloc(sizeof(uint32_t) * h->num_buckets);
+  memset(h->buckets, 0, sizeof(uint32_t) * h->num_buckets);
   return h;
 }
 
@@ -137,7 +137,7 @@ int gpr_histogram_merge(gpr_histogram *dst, const gpr_histogram *src) {
   return 1;
 }
 
-void gpr_histogram_merge_contents(gpr_histogram *dst, const gpr_uint32 *data,
+void gpr_histogram_merge_contents(gpr_histogram *dst, const uint32_t *data,
                                   size_t data_count, double min_seen,
                                   double max_seen, double sum,
                                   double sum_of_squares, double count) {
@@ -238,7 +238,7 @@ double gpr_histogram_sum_of_squares(gpr_histogram *h) {
   return h->sum_of_squares;
 }
 
-const gpr_uint32 *gpr_histogram_get_contents(gpr_histogram *h, size_t *size) {
+const uint32_t *gpr_histogram_get_contents(gpr_histogram *h, size_t *size) {
   *size = h->num_buckets;
   return h->buckets;
 }
diff --git a/src/core/support/log_posix.c b/src/core/support/log_posix.c
index 8986254e4e..3ff171f99c 100644
--- a/src/core/support/log_posix.c
+++ b/src/core/support/log_posix.c
@@ -45,7 +45,7 @@
 #include <time.h>
 #include <pthread.h>
 
-static gpr_intptr gettid(void) { return (gpr_intptr)pthread_self(); }
+static intptr_t gettid(void) { return (intptr_t)pthread_self(); }
 
 void gpr_log(const char *file, int line, gpr_log_severity severity,
              const char *format, ...) {
diff --git a/src/core/support/murmur_hash.c b/src/core/support/murmur_hash.c
index 37fdca82ba..a5261c0cc0 100644
--- a/src/core/support/murmur_hash.c
+++ b/src/core/support/murmur_hash.c
@@ -46,19 +46,19 @@
    handle aligned reads, do the conversion here */
 #define GETBLOCK32(p, i) (p)[(i)]
 
-gpr_uint32 gpr_murmur_hash3(const void *key, size_t len, gpr_uint32 seed) {
-  const gpr_uint8 *data = (const gpr_uint8 *)key;
+uint32_t gpr_murmur_hash3(const void *key, size_t len, uint32_t seed) {
+  const uint8_t *data = (const uint8_t *)key;
   const size_t nblocks = len / 4;
   int i;
 
-  gpr_uint32 h1 = seed;
-  gpr_uint32 k1;
+  uint32_t h1 = seed;
+  uint32_t k1;
 
-  const gpr_uint32 c1 = 0xcc9e2d51;
-  const gpr_uint32 c2 = 0x1b873593;
+  const uint32_t c1 = 0xcc9e2d51;
+  const uint32_t c2 = 0x1b873593;
 
-  const gpr_uint32 *blocks = ((const gpr_uint32 *)key) + nblocks;
-  const gpr_uint8 *tail = (const gpr_uint8 *)(data + nblocks * 4);
+  const uint32_t *blocks = ((const uint32_t *)key) + nblocks;
+  const uint8_t *tail = (const uint8_t *)(data + nblocks * 4);
 
   /* body */
   for (i = -(int)nblocks; i; i++) {
@@ -78,9 +78,9 @@ gpr_uint32 gpr_murmur_hash3(const void *key, size_t len, gpr_uint32 seed) {
   /* tail */
   switch (len & 3) {
     case 3:
-      k1 ^= ((gpr_uint32)tail[2]) << 16;
+      k1 ^= ((uint32_t)tail[2]) << 16;
     case 2:
-      k1 ^= ((gpr_uint32)tail[1]) << 8;
+      k1 ^= ((uint32_t)tail[1]) << 8;
     case 1:
       k1 ^= tail[0];
       k1 *= c1;
@@ -90,7 +90,7 @@ gpr_uint32 gpr_murmur_hash3(const void *key, size_t len, gpr_uint32 seed) {
   };
 
   /* finalization */
-  h1 ^= (gpr_uint32)len;
+  h1 ^= (uint32_t)len;
   FMIX32(h1);
   return h1;
 }
diff --git a/src/core/support/murmur_hash.h b/src/core/support/murmur_hash.h
index 343fcb99f7..0bf04f731a 100644
--- a/src/core/support/murmur_hash.h
+++ b/src/core/support/murmur_hash.h
@@ -39,6 +39,6 @@
 #include <stddef.h>
 
 /* compute the hash of key (length len) */
-gpr_uint32 gpr_murmur_hash3(const void *key, size_t len, gpr_uint32 seed);
+uint32_t gpr_murmur_hash3(const void *key, size_t len, uint32_t seed);
 
 #endif /* GRPC_INTERNAL_CORE_SUPPORT_MURMUR_HASH_H */
diff --git a/src/core/support/slice.c b/src/core/support/slice.c
index 9f0ded4932..b9a7c77bda 100644
--- a/src/core/support/slice.c
+++ b/src/core/support/slice.c
@@ -67,7 +67,7 @@ static gpr_slice_refcount noop_refcount = {noop_ref_or_unref,
 gpr_slice gpr_slice_from_static_string(const char *s) {
   gpr_slice slice;
   slice.refcount = &noop_refcount;
-  slice.data.refcounted.bytes = (gpr_uint8 *)s;
+  slice.data.refcounted.bytes = (uint8_t *)s;
   slice.data.refcounted.length = strlen(s);
   return slice;
 }
@@ -203,13 +203,13 @@ gpr_slice gpr_slice_malloc(size_t length) {
     /* The slices refcount points back to the allocated block. */
     slice.refcount = &rc->base;
     /* The data bytes are placed immediately after the refcount struct */
-    slice.data.refcounted.bytes = (gpr_uint8 *)(rc + 1);
+    slice.data.refcounted.bytes = (uint8_t *)(rc + 1);
     /* And the length of the block is set to the requested length */
     slice.data.refcounted.length = length;
   } else {
     /* small slice: just inline the data */
     slice.refcount = NULL;
-    slice.data.inlined.length = (gpr_uint8)length;
+    slice.data.inlined.length = (uint8_t)length;
   }
   return slice;
 }
@@ -232,7 +232,7 @@ gpr_slice gpr_slice_sub_no_ref(gpr_slice source, size_t begin, size_t end) {
     /* Enforce preconditions */
     GPR_ASSERT(source.data.inlined.length >= end);
     subset.refcount = NULL;
-    subset.data.inlined.length = (gpr_uint8)(end - begin);
+    subset.data.inlined.length = (uint8_t)(end - begin);
     memcpy(subset.data.inlined.bytes, source.data.inlined.bytes + begin,
            end - begin);
   }
@@ -244,7 +244,7 @@ gpr_slice gpr_slice_sub(gpr_slice source, size_t begin, size_t end) {
 
   if (end - begin <= sizeof(subset.data.inlined.bytes)) {
     subset.refcount = NULL;
-    subset.data.inlined.length = (gpr_uint8)(end - begin);
+    subset.data.inlined.length = (uint8_t)(end - begin);
     memcpy(subset.data.inlined.bytes, GPR_SLICE_START_PTR(source) + begin,
            end - begin);
   } else {
@@ -262,17 +262,17 @@ gpr_slice gpr_slice_split_tail(gpr_slice *source, size_t split) {
     /* inlined data, copy it out */
     GPR_ASSERT(source->data.inlined.length >= split);
     tail.refcount = NULL;
-    tail.data.inlined.length = (gpr_uint8)(source->data.inlined.length - split);
+    tail.data.inlined.length = (uint8_t)(source->data.inlined.length - split);
     memcpy(tail.data.inlined.bytes, source->data.inlined.bytes + split,
            tail.data.inlined.length);
-    source->data.inlined.length = (gpr_uint8)split;
+    source->data.inlined.length = (uint8_t)split;
   } else {
     size_t tail_length = source->data.refcounted.length - split;
     GPR_ASSERT(source->data.refcounted.length >= split);
     if (tail_length < sizeof(tail.data.inlined.bytes)) {
       /* Copy out the bytes - it'll be cheaper than refcounting */
       tail.refcount = NULL;
-      tail.data.inlined.length = (gpr_uint8)tail_length;
+      tail.data.inlined.length = (uint8_t)tail_length;
       memcpy(tail.data.inlined.bytes, source->data.refcounted.bytes + split,
              tail_length);
     } else {
@@ -297,17 +297,17 @@ gpr_slice gpr_slice_split_head(gpr_slice *source, size_t split) {
     GPR_ASSERT(source->data.inlined.length >= split);
 
     head.refcount = NULL;
-    head.data.inlined.length = (gpr_uint8)split;
+    head.data.inlined.length = (uint8_t)split;
     memcpy(head.data.inlined.bytes, source->data.inlined.bytes, split);
     source->data.inlined.length =
-        (gpr_uint8)(source->data.inlined.length - split);
+        (uint8_t)(source->data.inlined.length - split);
     memmove(source->data.inlined.bytes, source->data.inlined.bytes + split,
             source->data.inlined.length);
   } else if (split < sizeof(head.data.inlined.bytes)) {
     GPR_ASSERT(source->data.refcounted.length >= split);
 
     head.refcount = NULL;
-    head.data.inlined.length = (gpr_uint8)split;
+    head.data.inlined.length = (uint8_t)split;
     memcpy(head.data.inlined.bytes, source->data.refcounted.bytes, split);
     source->data.refcounted.bytes += split;
     source->data.refcounted.length -= split;
diff --git a/src/core/support/slice_buffer.c b/src/core/support/slice_buffer.c
index 856d3a2439..66f111d767 100644
--- a/src/core/support/slice_buffer.c
+++ b/src/core/support/slice_buffer.c
@@ -70,9 +70,9 @@ void gpr_slice_buffer_destroy(gpr_slice_buffer *sb) {
   }
 }
 
-gpr_uint8 *gpr_slice_buffer_tiny_add(gpr_slice_buffer *sb, size_t n) {
+uint8_t *gpr_slice_buffer_tiny_add(gpr_slice_buffer *sb, size_t n) {
   gpr_slice *back;
-  gpr_uint8 *out;
+  uint8_t *out;
 
   sb->length += n;
 
@@ -82,7 +82,7 @@ gpr_uint8 *gpr_slice_buffer_tiny_add(gpr_slice_buffer *sb, size_t n) {
   if ((back->data.inlined.length + n) > sizeof(back->data.inlined.bytes))
     goto add_new;
   out = back->data.inlined.bytes + back->data.inlined.length;
-  back->data.inlined.length = (gpr_uint8)(back->data.inlined.length + n);
+  back->data.inlined.length = (uint8_t)(back->data.inlined.length + n);
   return out;
 
 add_new:
@@ -90,7 +90,7 @@ add_new:
   back = &sb->slices[sb->count];
   sb->count++;
   back->refcount = NULL;
-  back->data.inlined.length = (gpr_uint8)n;
+  back->data.inlined.length = (uint8_t)n;
   return back->data.inlined.bytes;
 }
 
@@ -118,7 +118,7 @@ void gpr_slice_buffer_add(gpr_slice_buffer *sb, gpr_slice s) {
         memcpy(back->data.inlined.bytes + back->data.inlined.length,
                s.data.inlined.bytes, s.data.inlined.length);
         back->data.inlined.length =
-            (gpr_uint8)(back->data.inlined.length + s.data.inlined.length);
+            (uint8_t)(back->data.inlined.length + s.data.inlined.length);
       } else {
         size_t cp1 = GPR_SLICE_INLINED_SIZE - back->data.inlined.length;
         memcpy(back->data.inlined.bytes + back->data.inlined.length,
@@ -128,7 +128,7 @@ void gpr_slice_buffer_add(gpr_slice_buffer *sb, gpr_slice s) {
         back = &sb->slices[n];
         sb->count = n + 1;
         back->refcount = NULL;
-        back->data.inlined.length = (gpr_uint8)(s.data.inlined.length - cp1);
+        back->data.inlined.length = (uint8_t)(s.data.inlined.length - cp1);
         memcpy(back->data.inlined.bytes, s.data.inlined.bytes + cp1,
                s.data.inlined.length - cp1);
       }
diff --git a/src/core/support/stack_lockfree.c b/src/core/support/stack_lockfree.c
index fc934d404c..cd0afddf9d 100644
--- a/src/core/support/stack_lockfree.c
+++ b/src/core/support/stack_lockfree.c
@@ -45,13 +45,13 @@
    word that allows for an atomic CAS to set it up. */
 struct lockfree_node_contents {
   /* next thing to look at. Actual index for head, next index otherwise */
-  gpr_uint16 index;
+  uint16_t index;
 #ifdef GPR_ARCH_64
-  gpr_uint16 pad;
-  gpr_uint32 aba_ctr;
+  uint16_t pad;
+  uint32_t aba_ctr;
 #else
 #ifdef GPR_ARCH_32
-  gpr_uint16 aba_ctr;
+  uint16_t aba_ctr;
 #else
 #error Unsupported bit width architecture
 #endif
@@ -114,7 +114,7 @@ int gpr_stack_lockfree_push(gpr_stack_lockfree *stack, int entry) {
   lockfree_node newent;
 
   /* First fill in the entry's index and aba ctr for new head */
-  newhead.contents.index = (gpr_uint16)entry;
+  newhead.contents.index = (uint16_t)entry;
   /* Also post-increment the aba_ctr */
   curent.atm = gpr_atm_no_barrier_load(&stack->entries[entry].atm);
   newhead.contents.aba_ctr = ++curent.contents.aba_ctr;
diff --git a/src/core/support/string.c b/src/core/support/string.c
index 46a7ca3d46..1f541de40f 100644
--- a/src/core/support/string.c
+++ b/src/core/support/string.c
@@ -80,9 +80,9 @@ static void dump_out_append(dump_out *out, char c) {
 static void hexdump(dump_out *out, const char *buf, size_t len) {
   static const char hex[16] = "0123456789abcdef";
 
-  const gpr_uint8 *const beg = (const gpr_uint8 *)buf;
-  const gpr_uint8 *const end = beg + len;
-  const gpr_uint8 *cur;
+  const uint8_t *const beg = (const uint8_t *)buf;
+  const uint8_t *const end = beg + len;
+  const uint8_t *cur;
 
   for (cur = beg; cur != end; ++cur) {
     if (cur != beg) dump_out_append(out, ' ');
@@ -92,9 +92,9 @@ static void hexdump(dump_out *out, const char *buf, size_t len) {
 }
 
 static void asciidump(dump_out *out, const char *buf, size_t len) {
-  const gpr_uint8 *const beg = (const gpr_uint8 *)buf;
-  const gpr_uint8 *const end = beg + len;
-  const gpr_uint8 *cur;
+  const uint8_t *const beg = (const uint8_t *)buf;
+  const uint8_t *const end = beg + len;
+  const uint8_t *cur;
   int out_was_empty = (out->length == 0);
   if (!out_was_empty) {
     dump_out_append(out, ' ');
@@ -108,7 +108,7 @@ static void asciidump(dump_out *out, const char *buf, size_t len) {
   }
 }
 
-char *gpr_dump(const char *buf, size_t len, gpr_uint32 flags) {
+char *gpr_dump(const char *buf, size_t len, uint32_t flags) {
   dump_out out = dump_out_create();
   if (flags & GPR_DUMP_HEX) {
     hexdump(&out, buf, len);
@@ -120,21 +120,21 @@ char *gpr_dump(const char *buf, size_t len, gpr_uint32 flags) {
   return out.data;
 }
 
-char *gpr_dump_slice(gpr_slice s, gpr_uint32 flags) {
+char *gpr_dump_slice(gpr_slice s, uint32_t flags) {
   return gpr_dump((const char *)GPR_SLICE_START_PTR(s), GPR_SLICE_LENGTH(s),
                   flags);
 }
 
-int gpr_parse_bytes_to_uint32(const char *buf, size_t len, gpr_uint32 *result) {
-  gpr_uint32 out = 0;
-  gpr_uint32 new;
+int gpr_parse_bytes_to_uint32(const char *buf, size_t len, uint32_t *result) {
+  uint32_t out = 0;
+  uint32_t new;
   size_t i;
 
   if (len == 0) return 0; /* must have some bytes */
 
   for (i = 0; i < len; i++) {
     if (buf[i] < '0' || buf[i] > '9') return 0; /* bad char */
-    new = 10 * out + (gpr_uint32)(buf[i] - '0');
+    new = 10 * out + (uint32_t)(buf[i] - '0');
     if (new < out) return 0; /* overflow */
     out = new;
   }
@@ -173,8 +173,8 @@ int gpr_ltoa(long value, char *string) {
   return i;
 }
 
-int gpr_int64toa(gpr_int64 value, char *string) {
-  gpr_int64 sign;
+int int64_ttoa(int64_t value, char *string) {
+  int64_t sign;
   int i = 0;
 
   if (value == 0) {
@@ -238,7 +238,7 @@ static int slice_find_separator_offset(const gpr_slice str, const char *sep,
                                        const size_t read_offset, size_t *begin,
                                        size_t *end) {
   size_t i;
-  const gpr_uint8 *str_ptr = GPR_SLICE_START_PTR(str) + read_offset;
+  const uint8_t *str_ptr = GPR_SLICE_START_PTR(str) + read_offset;
   const size_t str_len = GPR_SLICE_LENGTH(str) - read_offset;
   const size_t sep_len = strlen(sep);
   if (str_len < sep_len) {
diff --git a/src/core/support/string.h b/src/core/support/string.h
index 9b604ac5bf..e6755de106 100644
--- a/src/core/support/string.h
+++ b/src/core/support/string.h
@@ -52,15 +52,15 @@ extern "C" {
 
 /* Converts array buf, of length len, into a C string  according to the flags.
    Result should be freed with gpr_free() */
-char *gpr_dump(const char *buf, size_t len, gpr_uint32 flags);
+char *gpr_dump(const char *buf, size_t len, uint32_t flags);
 
 /* Calls gpr_dump on a slice. */
-char *gpr_dump_slice(gpr_slice slice, gpr_uint32 flags);
+char *gpr_dump_slice(gpr_slice slice, uint32_t flags);
 
 /* Parses an array of bytes into an integer (base 10). Returns 1 on success,
    0 on failure. */
 int gpr_parse_bytes_to_uint32(const char *data, size_t length,
-                              gpr_uint32 *result);
+                              uint32_t *result);
 
 /* Minimum buffer size for calling ltoa */
 #define GPR_LTOA_MIN_BUFSIZE (3 * sizeof(long))
@@ -71,14 +71,14 @@ int gpr_parse_bytes_to_uint32(const char *data, size_t length,
 int gpr_ltoa(long value, char *output);
 
 /* Minimum buffer size for calling int64toa */
-#define GPR_INT64TOA_MIN_BUFSIZE (3 * sizeof(gpr_int64))
+#define GPR_INT64TOA_MIN_BUFSIZE (3 * sizeof(int64_t))
 
 /* Convert an int64 to a string in base 10; returns the length of the
 output string (or 0 on failure).
 output must be at least GPR_INT64TOA_MIN_BUFSIZE bytes long.
 NOTE: This function ensures sufficient bit width even on Win x64,
 where long is 32bit is size.*/
-int gpr_int64toa(gpr_int64 value, char *output);
+int int64_ttoa(int64_t value, char *output);
 
 /* Reverse a run of bytes */
 void gpr_reverse_bytes(char *str, int len);
diff --git a/src/core/support/sync.c b/src/core/support/sync.c
index d3cf77faea..d368422d9e 100644
--- a/src/core/support/sync.c
+++ b/src/core/support/sync.c
@@ -59,7 +59,7 @@ static void event_initialize(void) {
 
 /* Hash ev into an element of sync_array[]. */
 static struct sync_array_s *hash(gpr_event *ev) {
-  return &sync_array[((gpr_uintptr)ev) % event_sync_partitions];
+  return &sync_array[((uintptr_t)ev) % event_sync_partitions];
 }
 
 void gpr_event_init(gpr_event *ev) {
@@ -108,15 +108,15 @@ int gpr_unref(gpr_refcount *r) {
   return prior == 1;
 }
 
-void gpr_stats_init(gpr_stats_counter *c, gpr_intptr n) {
+void gpr_stats_init(gpr_stats_counter *c, intptr_t n) {
   gpr_atm_rel_store(&c->value, n);
 }
 
-void gpr_stats_inc(gpr_stats_counter *c, gpr_intptr inc) {
+void gpr_stats_inc(gpr_stats_counter *c, intptr_t inc) {
   gpr_atm_no_barrier_fetch_add(&c->value, inc);
 }
 
-gpr_intptr gpr_stats_read(const gpr_stats_counter *c) {
+intptr_t gpr_stats_read(const gpr_stats_counter *c) {
   /* don't need acquire-load, but we have no no-barrier load yet */
   return gpr_atm_acq_load(&c->value);
 }
diff --git a/src/core/support/sync_win32.c b/src/core/support/sync_win32.c
index 69dd46399a..51a082b29e 100644
--- a/src/core/support/sync_win32.c
+++ b/src/core/support/sync_win32.c
@@ -88,9 +88,9 @@ int gpr_cv_wait(gpr_cv *cv, gpr_mu *mu, gpr_timespec abs_deadline) {
     SleepConditionVariableCS(cv, &mu->cs, INFINITE);
   } else {
     gpr_timespec now = gpr_now(abs_deadline.clock_type);
-    gpr_int64 now_ms = (gpr_int64)now.tv_sec * 1000 + now.tv_nsec / 1000000;
-    gpr_int64 deadline_ms =
-        (gpr_int64)abs_deadline.tv_sec * 1000 + abs_deadline.tv_nsec / 1000000;
+    int64_t now_ms = (int64_t)now.tv_sec * 1000 + now.tv_nsec / 1000000;
+    int64_t deadline_ms =
+        (int64_t)abs_deadline.tv_sec * 1000 + abs_deadline.tv_nsec / 1000000;
     if (now_ms >= deadline_ms) {
       timeout = 1;
     } else {
diff --git a/src/core/support/time.c b/src/core/support/time.c
index 197fa9ad44..ac8c3bcde5 100644
--- a/src/core/support/time.c
+++ b/src/core/support/time.c
@@ -92,11 +92,11 @@ gpr_timespec gpr_time_from_nanos(long ns, gpr_clock_type type) {
     result = gpr_inf_past(type);
   } else if (ns >= 0) {
     result.tv_sec = ns / GPR_NS_PER_SEC;
-    result.tv_nsec = (gpr_int32)(ns - result.tv_sec * GPR_NS_PER_SEC);
+    result.tv_nsec = (int32_t)(ns - result.tv_sec * GPR_NS_PER_SEC);
   } else {
     /* Calculation carefully formulated to avoid any possible under/overflow. */
     result.tv_sec = (-(999999999 - (ns + GPR_NS_PER_SEC)) / GPR_NS_PER_SEC) - 1;
-    result.tv_nsec = (gpr_int32)(ns - result.tv_sec * GPR_NS_PER_SEC);
+    result.tv_nsec = (int32_t)(ns - result.tv_sec * GPR_NS_PER_SEC);
   }
   return result;
 }
@@ -110,11 +110,11 @@ gpr_timespec gpr_time_from_micros(long us, gpr_clock_type type) {
     result = gpr_inf_past(type);
   } else if (us >= 0) {
     result.tv_sec = us / 1000000;
-    result.tv_nsec = (gpr_int32)((us - result.tv_sec * 1000000) * 1000);
+    result.tv_nsec = (int32_t)((us - result.tv_sec * 1000000) * 1000);
   } else {
     /* Calculation carefully formulated to avoid any possible under/overflow. */
     result.tv_sec = (-(999999 - (us + 1000000)) / 1000000) - 1;
-    result.tv_nsec = (gpr_int32)((us - result.tv_sec * 1000000) * 1000);
+    result.tv_nsec = (int32_t)((us - result.tv_sec * 1000000) * 1000);
   }
   return result;
 }
@@ -128,11 +128,11 @@ gpr_timespec gpr_time_from_millis(long ms, gpr_clock_type type) {
     result = gpr_inf_past(type);
   } else if (ms >= 0) {
     result.tv_sec = ms / 1000;
-    result.tv_nsec = (gpr_int32)((ms - result.tv_sec * 1000) * 1000000);
+    result.tv_nsec = (int32_t)((ms - result.tv_sec * 1000) * 1000000);
   } else {
     /* Calculation carefully formulated to avoid any possible under/overflow. */
     result.tv_sec = (-(999 - (ms + 1000)) / 1000) - 1;
-    result.tv_nsec = (gpr_int32)((ms - result.tv_sec * 1000) * 1000000);
+    result.tv_nsec = (int32_t)((ms - result.tv_sec * 1000) * 1000000);
   }
   return result;
 }
@@ -181,7 +181,7 @@ gpr_timespec gpr_time_from_hours(long h, gpr_clock_type type) {
 
 gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b) {
   gpr_timespec sum;
-  gpr_int64 inc = 0;
+  int64_t inc = 0;
   GPR_ASSERT(b.clock_type == GPR_TIMESPAN);
   sum.clock_type = a.clock_type;
   sum.tv_nsec = a.tv_nsec + b.tv_nsec;
@@ -210,7 +210,7 @@ gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b) {
 
 gpr_timespec gpr_time_sub(gpr_timespec a, gpr_timespec b) {
   gpr_timespec diff;
-  gpr_int64 dec = 0;
+  int64_t dec = 0;
   if (b.clock_type == GPR_TIMESPAN) {
     diff.clock_type = a.clock_type;
   } else {
@@ -256,7 +256,7 @@ int gpr_time_similar(gpr_timespec a, gpr_timespec b, gpr_timespec threshold) {
   }
 }
 
-gpr_int32 gpr_time_to_millis(gpr_timespec t) {
+int32_t gpr_time_to_millis(gpr_timespec t) {
   if (t.tv_sec >= 2147483) {
     if (t.tv_sec == 2147483 && t.tv_nsec < 648 * GPR_NS_PER_MS) {
       return 2147483 * GPR_MS_PER_SEC + t.tv_nsec / GPR_NS_PER_MS;
@@ -267,7 +267,7 @@ gpr_int32 gpr_time_to_millis(gpr_timespec t) {
        care?) */
     return -2147483647;
   } else {
-    return (gpr_int32)(t.tv_sec * GPR_MS_PER_SEC + t.tv_nsec / GPR_NS_PER_MS);
+    return (int32_t)(t.tv_sec * GPR_MS_PER_SEC + t.tv_nsec / GPR_NS_PER_MS);
   }
 }
 
diff --git a/src/core/support/time_posix.c b/src/core/support/time_posix.c
index ba72572e05..06bb78c913 100644
--- a/src/core/support/time_posix.c
+++ b/src/core/support/time_posix.c
@@ -45,7 +45,7 @@
 
 static struct timespec timespec_from_gpr(gpr_timespec gts) {
   struct timespec rv;
-  if (sizeof(time_t) < sizeof(gpr_int64)) {
+  if (sizeof(time_t) < sizeof(int64_t)) {
     /* fine to assert, as this is only used in gpr_sleep_until */
     GPR_ASSERT(gts.tv_sec <= INT32_MAX && gts.tv_sec >= INT32_MIN);
   }
@@ -64,7 +64,7 @@ static gpr_timespec gpr_from_timespec(struct timespec ts,
    */
   gpr_timespec rv;
   rv.tv_sec = ts.tv_sec;
-  rv.tv_nsec = (gpr_int32)ts.tv_nsec;
+  rv.tv_nsec = (int32_t)ts.tv_nsec;
   rv.clock_type = clock_type;
   return rv;
 }
@@ -119,8 +119,8 @@ gpr_timespec gpr_now(gpr_clock_type clock) {
       break;
     case GPR_CLOCK_MONOTONIC:
       now_dbl = (mach_absolute_time() - g_time_start) * g_time_scale;
-      now.tv_sec = (gpr_int64)(now_dbl * 1e-9);
-      now.tv_nsec = (gpr_int32)(now_dbl - ((double)now.tv_sec) * 1e9);
+      now.tv_sec = (int64_t)(now_dbl * 1e-9);
+      now.tv_nsec = (int32_t)(now_dbl - ((double)now.tv_sec) * 1e9);
       break;
     case GPR_CLOCK_PRECISE:
       gpr_precise_clock_now(&now);
diff --git a/src/core/support/time_precise.c b/src/core/support/time_precise.c
index 4de1d9b071..a2cf74bc84 100644
--- a/src/core/support/time_precise.c
+++ b/src/core/support/time_precise.c
@@ -75,8 +75,8 @@ void gpr_precise_clock_now(gpr_timespec *clk) {
   gpr_get_cycle_counter(&counter);
   secs = (double)(counter - start_cycle) / cycles_per_second;
   clk->clock_type = GPR_CLOCK_PRECISE;
-  clk->tv_sec = (gpr_int64)secs;
-  clk->tv_nsec = (gpr_int32)(1e9 * (secs - (double)clk->tv_sec));
+  clk->tv_sec = (int64_t)secs;
+  clk->tv_nsec = (int32_t)(1e9 * (secs - (double)clk->tv_sec));
 }
 
 #else  /* GRPC_TIMERS_RDTSC */
diff --git a/src/core/support/time_win32.c b/src/core/support/time_win32.c
index 7ccaaa248d..2bed0f6a9c 100644
--- a/src/core/support/time_win32.c
+++ b/src/core/support/time_win32.c
@@ -62,15 +62,15 @@ gpr_timespec gpr_now(gpr_clock_type clock) {
   switch (clock) {
     case GPR_CLOCK_REALTIME:
       _ftime_s(&now_tb);
-      now_tv.tv_sec = (gpr_int64)now_tb.time;
+      now_tv.tv_sec = (int64_t)now_tb.time;
       now_tv.tv_nsec = now_tb.millitm * 1000000;
       break;
     case GPR_CLOCK_MONOTONIC:
     case GPR_CLOCK_PRECISE:
       QueryPerformanceCounter(&timestamp);
       now_dbl = (timestamp.QuadPart - g_start_time.QuadPart) * g_time_scale;
-      now_tv.tv_sec = (gpr_int64)now_dbl;
-      now_tv.tv_nsec = (gpr_int32)((now_dbl - (double)now_tv.tv_sec) * 1e9);
+      now_tv.tv_sec = (int64_t)now_dbl;
+      now_tv.tv_nsec = (int32_t)((now_dbl - (double)now_tv.tv_sec) * 1e9);
       break;
   }
   return now_tv;
diff --git a/src/core/support/tls_pthread.c b/src/core/support/tls_pthread.c
index 2d28226fc4..9683a6e547 100644
--- a/src/core/support/tls_pthread.c
+++ b/src/core/support/tls_pthread.c
@@ -37,7 +37,7 @@
 
 #include <grpc/support/tls.h>
 
-gpr_intptr gpr_tls_set(struct gpr_pthread_thread_local *tls, gpr_intptr value) {
+intptr_t gpr_tls_set(struct gpr_pthread_thread_local *tls, intptr_t value) {
   GPR_ASSERT(0 == pthread_setspecific(tls->key, (void *)value));
   return value;
 }