diff options
author | 2017-05-16 14:51:32 +0200 | |
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committer | 2017-05-16 14:51:32 +0200 | |
commit | fca143f059a0bddd7d47b8dc2df646a891b0eb0f (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /lib/librte_cmdline/cmdline_parse.c | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Diffstat (limited to 'lib/librte_cmdline/cmdline_parse.c')
-rw-r--r-- | lib/librte_cmdline/cmdline_parse.c | 69 |
1 files changed, 60 insertions, 9 deletions
diff --git a/lib/librte_cmdline/cmdline_parse.c b/lib/librte_cmdline/cmdline_parse.c index b496067a..b8148808 100644 --- a/lib/librte_cmdline/cmdline_parse.c +++ b/lib/librte_cmdline/cmdline_parse.c @@ -146,7 +146,9 @@ nb_common_chars(const char * s1, const char * s2) */ static int match_inst(cmdline_parse_inst_t *inst, const char *buf, - unsigned int nb_match_token, void *resbuf, unsigned resbuf_size) + unsigned int nb_match_token, void *resbuf, unsigned resbuf_size, + cmdline_parse_token_hdr_t + *(*dyn_tokens)[CMDLINE_PARSE_DYNAMIC_TOKENS]) { unsigned int token_num=0; cmdline_parse_token_hdr_t * token_p; @@ -155,6 +157,11 @@ match_inst(cmdline_parse_inst_t *inst, const char *buf, struct cmdline_token_hdr token_hdr; token_p = inst->tokens[token_num]; + if (!token_p && dyn_tokens && inst->f) { + if (!(*dyn_tokens)[0]) + inst->f(&(*dyn_tokens)[0], NULL, dyn_tokens); + token_p = (*dyn_tokens)[0]; + } if (token_p) memcpy(&token_hdr, token_p, sizeof(token_hdr)); @@ -196,7 +203,17 @@ match_inst(cmdline_parse_inst_t *inst, const char *buf, buf += n; token_num ++; - token_p = inst->tokens[token_num]; + if (!inst->tokens[0]) { + if (token_num < (CMDLINE_PARSE_DYNAMIC_TOKENS - 1)) { + if (!(*dyn_tokens)[token_num]) + inst->f(&(*dyn_tokens)[token_num], + NULL, + dyn_tokens); + token_p = (*dyn_tokens)[token_num]; + } else + token_p = NULL; + } else + token_p = inst->tokens[token_num]; if (token_p) memcpy(&token_hdr, token_p, sizeof(token_hdr)); } @@ -238,7 +255,11 @@ cmdline_parse(struct cmdline *cl, const char * buf) unsigned int inst_num=0; cmdline_parse_inst_t *inst; const char *curbuf; - char result_buf[CMDLINE_PARSE_RESULT_BUFSIZE]; + union { + char buf[CMDLINE_PARSE_RESULT_BUFSIZE]; + long double align; /* strong alignment constraint for buf */ + } result, tmp_result; + cmdline_parse_token_hdr_t *dyn_tokens[CMDLINE_PARSE_DYNAMIC_TOKENS]; void (*f)(void *, struct cmdline *, void *) = NULL; void *data = NULL; int comment = 0; @@ -255,6 +276,7 @@ cmdline_parse(struct cmdline *cl, const char * buf) return CMDLINE_PARSE_BAD_ARGS; ctx = cl->ctx; + memset(&dyn_tokens, 0, sizeof(dyn_tokens)); /* * - look if the buffer contains at least one line @@ -299,13 +321,16 @@ cmdline_parse(struct cmdline *cl, const char * buf) debug_printf("INST %d\n", inst_num); /* fully parsed */ - tok = match_inst(inst, buf, 0, result_buf, sizeof(result_buf)); + tok = match_inst(inst, buf, 0, tmp_result.buf, + sizeof(tmp_result.buf), &dyn_tokens); if (tok > 0) /* we matched at least one token */ err = CMDLINE_PARSE_BAD_ARGS; else if (!tok) { debug_printf("INST fully parsed\n"); + memcpy(&result, &tmp_result, + sizeof(result)); /* skip spaces */ while (isblank2(*curbuf)) { curbuf++; @@ -333,7 +358,7 @@ cmdline_parse(struct cmdline *cl, const char * buf) /* call func */ if (f) { - f(result_buf, cl, data); + f(result.buf, cl, data); } /* no match */ @@ -355,6 +380,7 @@ cmdline_complete(struct cmdline *cl, const char *buf, int *state, cmdline_parse_token_hdr_t *token_p; struct cmdline_token_hdr token_hdr; char tmpbuf[CMDLINE_BUFFER_SIZE], comp_buf[CMDLINE_BUFFER_SIZE]; + cmdline_parse_token_hdr_t *dyn_tokens[CMDLINE_PARSE_DYNAMIC_TOKENS]; unsigned int partial_tok_len; int comp_len = -1; int tmp_len = -1; @@ -374,6 +400,7 @@ cmdline_complete(struct cmdline *cl, const char *buf, int *state, debug_printf("%s called\n", __func__); memset(&token_hdr, 0, sizeof(token_hdr)); + memset(&dyn_tokens, 0, sizeof(dyn_tokens)); /* count the number of complete token to parse */ for (i=0 ; buf[i] ; i++) { @@ -396,11 +423,24 @@ cmdline_complete(struct cmdline *cl, const char *buf, int *state, inst = ctx[inst_num]; while (inst) { /* parse the first tokens of the inst */ - if (nb_token && match_inst(inst, buf, nb_token, NULL, 0)) + if (nb_token && + match_inst(inst, buf, nb_token, NULL, 0, + &dyn_tokens)) goto next; debug_printf("instruction match\n"); - token_p = inst->tokens[nb_token]; + if (!inst->tokens[0]) { + if (nb_token < + (CMDLINE_PARSE_DYNAMIC_TOKENS - 1)) { + if (!dyn_tokens[nb_token]) + inst->f(&dyn_tokens[nb_token], + NULL, + &dyn_tokens); + token_p = dyn_tokens[nb_token]; + } else + token_p = NULL; + } else + token_p = inst->tokens[nb_token]; if (token_p) memcpy(&token_hdr, token_p, sizeof(token_hdr)); @@ -490,10 +530,21 @@ cmdline_complete(struct cmdline *cl, const char *buf, int *state, /* we need to redo it */ inst = ctx[inst_num]; - if (nb_token && match_inst(inst, buf, nb_token, NULL, 0)) + if (nb_token && + match_inst(inst, buf, nb_token, NULL, 0, &dyn_tokens)) goto next2; - token_p = inst->tokens[nb_token]; + if (!inst->tokens[0]) { + if (nb_token < (CMDLINE_PARSE_DYNAMIC_TOKENS - 1)) { + if (!dyn_tokens[nb_token]) + inst->f(&dyn_tokens[nb_token], + NULL, + &dyn_tokens); + token_p = dyn_tokens[nb_token]; + } else + token_p = NULL; + } else + token_p = inst->tokens[nb_token]; if (token_p) memcpy(&token_hdr, token_p, sizeof(token_hdr)); |