diff options
Diffstat (limited to 'src/core/support/string.c')
-rw-r--r-- | src/core/support/string.c | 350 |
1 files changed, 142 insertions, 208 deletions
diff --git a/src/core/support/string.c b/src/core/support/string.c index 28207f5dc2..e0ffeb8a4a 100644 --- a/src/core/support/string.c +++ b/src/core/support/string.c @@ -42,215 +42,169 @@ #include <grpc/support/port_platform.h> #include <grpc/support/useful.h> -char * -gpr_strdup (const char *src) -{ +char *gpr_strdup(const char *src) { char *dst; size_t len; - if (!src) - { - return NULL; - } + if (!src) { + return NULL; + } - len = strlen (src) + 1; - dst = gpr_malloc (len); + len = strlen(src) + 1; + dst = gpr_malloc(len); - memcpy (dst, src, len); + memcpy(dst, src, len); return dst; } -typedef struct -{ +typedef struct { size_t capacity; size_t length; char *data; } dump_out; -static dump_out -dump_out_create (void) -{ - dump_out r = { 0, 0, NULL }; +static dump_out dump_out_create(void) { + dump_out r = {0, 0, NULL}; return r; } -static void -dump_out_append (dump_out * out, char c) -{ - if (out->length == out->capacity) - { - out->capacity = GPR_MAX (8, 2 * out->capacity); - out->data = gpr_realloc (out->data, out->capacity); - } +static void dump_out_append(dump_out *out, char c) { + if (out->length == out->capacity) { + out->capacity = GPR_MAX(8, 2 * out->capacity); + out->data = gpr_realloc(out->data, out->capacity); + } out->data[out->length++] = c; } -static void -hexdump (dump_out * out, const char *buf, size_t len) -{ +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 beg = (const gpr_uint8 *)buf; const gpr_uint8 *const end = beg + len; const gpr_uint8 *cur; - for (cur = beg; cur != end; ++cur) - { - if (cur != beg) - dump_out_append (out, ' '); - dump_out_append (out, hex[*cur >> 4]); - dump_out_append (out, hex[*cur & 0xf]); - } + for (cur = beg; cur != end; ++cur) { + if (cur != beg) dump_out_append(out, ' '); + dump_out_append(out, hex[*cur >> 4]); + dump_out_append(out, hex[*cur & 0xf]); + } } -static void -asciidump (dump_out * out, const char *buf, size_t len) -{ - const gpr_uint8 *const beg = (const gpr_uint8 *) buf; +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; int out_was_empty = (out->length == 0); - if (!out_was_empty) - { - dump_out_append (out, ' '); - dump_out_append (out, '\''); - } - for (cur = beg; cur != end; ++cur) - { - dump_out_append (out, (char) (isprint (*cur) ? *(char *) cur : '.')); - } - if (!out_was_empty) - { - dump_out_append (out, '\''); - } + if (!out_was_empty) { + dump_out_append(out, ' '); + dump_out_append(out, '\''); + } + for (cur = beg; cur != end; ++cur) { + dump_out_append(out, (char)(isprint(*cur) ? *(char *)cur : '.')); + } + if (!out_was_empty) { + dump_out_append(out, '\''); + } } -char * -gpr_dump (const char *buf, size_t len, gpr_uint32 flags) -{ - dump_out out = dump_out_create (); - if (flags & GPR_DUMP_HEX) - { - hexdump (&out, buf, len); - } - if (flags & GPR_DUMP_ASCII) - { - asciidump (&out, buf, len); - } - dump_out_append (&out, 0); +char *gpr_dump(const char *buf, size_t len, gpr_uint32 flags) { + dump_out out = dump_out_create(); + if (flags & GPR_DUMP_HEX) { + hexdump(&out, buf, len); + } + if (flags & GPR_DUMP_ASCII) { + asciidump(&out, buf, len); + } + dump_out_append(&out, 0); return out.data; } -char * -gpr_dump_slice (gpr_slice s, gpr_uint32 flags) -{ - return gpr_dump ((const char *) GPR_SLICE_START_PTR (s), GPR_SLICE_LENGTH (s), flags); +char *gpr_dump_slice(gpr_slice s, gpr_uint32 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) -{ +int gpr_parse_bytes_to_uint32(const char *buf, size_t len, gpr_uint32 *result) { gpr_uint32 out = 0; gpr_uint32 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'); - if (new < out) - return 0; /* overflow */ - out = new; - } + 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'); + if (new < out) return 0; /* overflow */ + out = new; + } *result = out; return 1; } -void -gpr_reverse_bytes (char *str, int len) -{ +void gpr_reverse_bytes(char *str, int len) { char *p1, *p2; - for (p1 = str, p2 = str + len - 1; p2 > p1; ++p1, --p2) - { - char temp = *p1; - *p1 = *p2; - *p2 = temp; - } + for (p1 = str, p2 = str + len - 1; p2 > p1; ++p1, --p2) { + char temp = *p1; + *p1 = *p2; + *p2 = temp; + } } -int -gpr_ltoa (long value, char *string) -{ +int gpr_ltoa(long value, char *string) { int i = 0; int neg = value < 0; - if (value == 0) - { - string[0] = '0'; - string[1] = 0; - return 1; - } - - if (neg) - value = -value; - while (value) - { - string[i++] = (char) ('0' + value % 10); - value /= 10; - } - if (neg) - string[i++] = '-'; - gpr_reverse_bytes (string, i); + if (value == 0) { + string[0] = '0'; + string[1] = 0; + return 1; + } + + if (neg) value = -value; + while (value) { + string[i++] = (char)('0' + value % 10); + value /= 10; + } + if (neg) string[i++] = '-'; + gpr_reverse_bytes(string, i); string[i] = 0; return i; } -char * -gpr_strjoin (const char **strs, size_t nstrs, size_t * final_length) -{ - return gpr_strjoin_sep (strs, nstrs, "", final_length); +char *gpr_strjoin(const char **strs, size_t nstrs, size_t *final_length) { + return gpr_strjoin_sep(strs, nstrs, "", final_length); } -char * -gpr_strjoin_sep (const char **strs, size_t nstrs, const char *sep, size_t * final_length) -{ - const size_t sep_len = strlen (sep); +char *gpr_strjoin_sep(const char **strs, size_t nstrs, const char *sep, + size_t *final_length) { + const size_t sep_len = strlen(sep); size_t out_length = 0; size_t i; char *out; - for (i = 0; i < nstrs; i++) - { - out_length += strlen (strs[i]); - } - out_length += 1; /* null terminator */ - if (nstrs > 0) - { - out_length += sep_len * (nstrs - 1); /* separators */ - } - out = gpr_malloc (out_length); + for (i = 0; i < nstrs; i++) { + out_length += strlen(strs[i]); + } + out_length += 1; /* null terminator */ + if (nstrs > 0) { + out_length += sep_len * (nstrs - 1); /* separators */ + } + out = gpr_malloc(out_length); out_length = 0; - for (i = 0; i < nstrs; i++) - { - const size_t slen = strlen (strs[i]); - if (i != 0) - { - memcpy (out + out_length, sep, sep_len); - out_length += sep_len; - } - memcpy (out + out_length, strs[i], slen); - out_length += slen; + for (i = 0; i < nstrs; i++) { + const size_t slen = strlen(strs[i]); + if (i != 0) { + memcpy(out + out_length, sep, sep_len); + out_length += sep_len; } + memcpy(out + out_length, strs[i], slen); + out_length += slen; + } out[out_length] = 0; - if (final_length != NULL) - { - *final_length = out_length; - } + if (final_length != NULL) { + *final_length = out_length; + } return out; } @@ -259,83 +213,63 @@ gpr_strjoin_sep (const char **strs, size_t nstrs, const char *sep, size_t * fina * str. * * Returns 1 and updates \a begin and \a end. Returns 0 otherwise. */ -static int -slice_find_separator_offset (const gpr_slice str, const char *sep, const size_t read_offset, size_t * begin, size_t * end) -{ +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 size_t str_len = GPR_SLICE_LENGTH (str) - read_offset; - const size_t sep_len = strlen (sep); - if (str_len < sep_len) - { - return 0; - } - - for (i = 0; i <= str_len - sep_len; i++) - { - if (memcmp (str_ptr + i, sep, sep_len) == 0) - { - *begin = read_offset; - *end = read_offset + i; - return 1; - } + const gpr_uint8 *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) { + return 0; + } + + for (i = 0; i <= str_len - sep_len; i++) { + if (memcmp(str_ptr + i, sep, sep_len) == 0) { + *begin = read_offset; + *end = read_offset + i; + return 1; } + } return 0; } -void -gpr_slice_split (gpr_slice str, const char *sep, gpr_slice_buffer * dst) -{ - const size_t sep_len = strlen (sep); +void gpr_slice_split(gpr_slice str, const char *sep, gpr_slice_buffer *dst) { + const size_t sep_len = strlen(sep); size_t begin, end; - GPR_ASSERT (sep_len > 0); - - if (slice_find_separator_offset (str, sep, 0, &begin, &end) != 0) - { - do - { - gpr_slice_buffer_add_indexed (dst, gpr_slice_sub (str, begin, end)); - } - while (slice_find_separator_offset (str, sep, end + sep_len, &begin, &end) != 0); - gpr_slice_buffer_add_indexed (dst, gpr_slice_sub (str, end + sep_len, GPR_SLICE_LENGTH (str))); - } - else - { /* no sep found, add whole input */ - gpr_slice_buffer_add_indexed (dst, gpr_slice_ref (str)); - } + GPR_ASSERT(sep_len > 0); + + if (slice_find_separator_offset(str, sep, 0, &begin, &end) != 0) { + do { + gpr_slice_buffer_add_indexed(dst, gpr_slice_sub(str, begin, end)); + } while (slice_find_separator_offset(str, sep, end + sep_len, &begin, + &end) != 0); + gpr_slice_buffer_add_indexed( + dst, gpr_slice_sub(str, end + sep_len, GPR_SLICE_LENGTH(str))); + } else { /* no sep found, add whole input */ + gpr_slice_buffer_add_indexed(dst, gpr_slice_ref(str)); + } } -void -gpr_strvec_init (gpr_strvec * sv) -{ - memset (sv, 0, sizeof (*sv)); -} +void gpr_strvec_init(gpr_strvec *sv) { memset(sv, 0, sizeof(*sv)); } -void -gpr_strvec_destroy (gpr_strvec * sv) -{ +void gpr_strvec_destroy(gpr_strvec *sv) { size_t i; - for (i = 0; i < sv->count; i++) - { - gpr_free (sv->strs[i]); - } - gpr_free (sv->strs); + for (i = 0; i < sv->count; i++) { + gpr_free(sv->strs[i]); + } + gpr_free(sv->strs); } -void -gpr_strvec_add (gpr_strvec * sv, char *str) -{ - if (sv->count == sv->capacity) - { - sv->capacity = GPR_MAX (sv->capacity + 8, sv->capacity * 2); - sv->strs = gpr_realloc (sv->strs, sizeof (char *) * sv->capacity); - } +void gpr_strvec_add(gpr_strvec *sv, char *str) { + if (sv->count == sv->capacity) { + sv->capacity = GPR_MAX(sv->capacity + 8, sv->capacity * 2); + sv->strs = gpr_realloc(sv->strs, sizeof(char *) * sv->capacity); + } sv->strs[sv->count++] = str; } -char * -gpr_strvec_flatten (gpr_strvec * sv, size_t * final_length) -{ - return gpr_strjoin ((const char **) sv->strs, sv->count, final_length); +char *gpr_strvec_flatten(gpr_strvec *sv, size_t *final_length) { + return gpr_strjoin((const char **)sv->strs, sv->count, final_length); } |