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nx-match: Rename and export functions for parsing and formatting subfields.

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These will be used from other source files in upcoming commits.
This commit is contained in:
Ben Pfaff
2010-12-16 13:57:21 -08:00
parent 21dd5f55a4
commit 36b4c892f6
2 changed files with 14 additions and 10 deletions
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20
lib/nx-match.c
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@@ -824,8 +824,8 @@ nx_match_from_string(const char *s, struct ofpbuf *b)
return match_len;
}
static const char *
parse_nxm_field_bits(const char *s, uint32_t *headerp, int *ofsp, int *n_bitsp)
const char *
nxm_parse_field_bits(const char *s, uint32_t *headerp, int *ofsp, int *n_bitsp)
{
const char *full_s = s;
const char *name;
@@ -886,12 +886,12 @@ nxm_parse_reg_move(struct nx_action_reg_move *move, const char *s)
int src_ofs, dst_ofs;
int src_n_bits, dst_n_bits;
s = parse_nxm_field_bits(s, &src, &src_ofs, &src_n_bits);
s = nxm_parse_field_bits(s, &src, &src_ofs, &src_n_bits);
if (strncmp(s, "->", 2)) {
ovs_fatal(0, "%s: missing `->' following source", full_s);
}
s += 2;
s = parse_nxm_field_bits(s, &dst, &dst_ofs, &dst_n_bits);
s = nxm_parse_field_bits(s, &dst, &dst_ofs, &dst_n_bits);
if (*s != '\0') {
ovs_fatal(0, "%s: trailing garbage following destination", full_s);
}
@@ -925,7 +925,7 @@ nxm_parse_reg_load(struct nx_action_reg_load *load, const char *s)
ovs_fatal(0, "%s: missing `->' following value", full_s);
}
s += 2;
s = parse_nxm_field_bits(s, &dst, &ofs, &n_bits);
s = nxm_parse_field_bits(s, &dst, &ofs, &n_bits);
if (*s != '\0') {
ovs_fatal(0, "%s: trailing garbage following destination", full_s);
}
@@ -946,8 +946,8 @@ nxm_parse_reg_load(struct nx_action_reg_load *load, const char *s)
/* nxm_format_reg_move(), nxm_format_reg_load(). */
static void
format_nxm_field_bits(struct ds *s, uint32_t header, int ofs, int n_bits)
void
nxm_format_field_bits(struct ds *s, uint32_t header, int ofs, int n_bits)
{
format_nxm_field_name(s, header);
if (ofs == 0 && n_bits == nxm_field_bits(header)) {
@@ -969,9 +969,9 @@ nxm_format_reg_move(const struct nx_action_reg_move *move, struct ds *s)
uint32_t dst = ntohl(move->dst);
ds_put_format(s, "move:");
format_nxm_field_bits(s, src, src_ofs, n_bits);
nxm_format_field_bits(s, src, src_ofs, n_bits);
ds_put_cstr(s, "->");
format_nxm_field_bits(s, dst, dst_ofs, n_bits);
nxm_format_field_bits(s, dst, dst_ofs, n_bits);
}
void
@@ -983,7 +983,7 @@ nxm_format_reg_load(const struct nx_action_reg_load *load, struct ds *s)
uint64_t value = ntohll(load->value);
ds_put_format(s, "load:%"PRIu64"->", value);
format_nxm_field_bits(s, dst, ofs, n_bits);
nxm_format_field_bits(s, dst, ofs, n_bits);
}
/* nxm_check_reg_move(), nxm_check_reg_load(). */