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change branch.data to union to better handle various types

This commit is contained in:
Doug MacEachern 2007-01-17 16:48:22 +00:00
parent 165ab47afd
commit f18113ec22
1 changed files with 41 additions and 31 deletions
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72
src/sigar_ptql.c
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@ -79,6 +79,7 @@ typedef enum {
#define PTQL_OP_FLAG_PARENT 1
#define PTQL_OP_FLAG_REF 2
#define PTQL_OP_FLAG_GLOB 4
struct ptql_parse_branch_t {
char *name;
@ -98,16 +99,25 @@ typedef struct {
} ptql_lookup_t;
#define DATA_PTR(branch) \
((char *)branch->data + branch->lookup->offset)
((char *)branch->data.ptr + branch->lookup->offset)
static void data_free(void *data)
{
free(data);
}
typedef union {
sigar_pid_t pid;
sigar_uint64_t ui64;
sigar_uint32_t ui32;
char chr[4];
char *str;
void *ptr;
} any_value_t;
struct ptql_branch_t {
ptql_lookup_t *lookup;
void *data;
any_value_t data;
unsigned int data_size;
void (*data_free)(void *);
unsigned int flags;
@ -119,13 +129,7 @@ struct ptql_branch_t {
ptql_op_chr_t chr;
ptql_op_str_t str;
} match;
union {
sigar_uint64_t ui64;
sigar_uint32_t ui32;
char chr[4];
char *str;
void *ptr;
} value;
any_value_t value;
void (*value_free)(void *);
};
@ -442,8 +446,8 @@ static int ptql_branch_list_destroy(sigar_t *sigar,
ptql_branch_t *branch =
&branches->data[i];
if (branch->data_size && branch->data) {
branch->data_free(branch->data);
if (branch->data_size && branch->data.ptr) {
branch->data_free(branch->data.ptr);
}
if (branch->lookup &&
@ -466,7 +470,7 @@ static int ptql_branch_list_destroy(sigar_t *sigar,
static int ptql_branch_init_any(ptql_parse_branch_t *parsed,
ptql_branch_t *branch)
{
branch->data = strdup(parsed->attr);
branch->data.str = strdup(parsed->attr);
branch->data_size = strlen(parsed->attr);
return SIGAR_OK;
}
@ -527,29 +531,35 @@ enum {
PTQL_PID_SERVICE
};
#ifdef SIGAR_64BIT
#define str2pid(value) strtoull(value, NULL, 10)
#else
#define str2pid(value) strtoul(value, NULL, 10)
#endif
static int ptql_branch_init_pid(ptql_parse_branch_t *parsed,
ptql_branch_t *branch)
{
if (strEQ(parsed->attr, "Pid")) {
branch->flags = PTQL_PID_PID;
if (strEQ(parsed->value, "$$")) {
branch->data = (void*)getpid();
branch->data.pid = getpid();
}
else {
branch->data = (void*)atoi(parsed->value); /*XXX*/
branch->data.pid = str2pid(parsed->value);
}
return SIGAR_OK;
}
else if (strEQ(parsed->attr, "PidFile")) {
branch->flags = PTQL_PID_FILE;
branch->data = strdup(parsed->value);
branch->data.str = strdup(parsed->value);
branch->data_size = strlen(parsed->value);
return SIGAR_OK;
}
else if (strEQ(parsed->attr, "Service")) {
#ifdef WIN32
branch->flags = PTQL_PID_SERVICE;
branch->data = strdup(parsed->value);
branch->data.str = strdup(parsed->value);
branch->data_size = strlen(parsed->value);
return SIGAR_OK;
#else
@ -572,7 +582,7 @@ static int ptql_pid_match(sigar_t *sigar,
if (branch->flags == PTQL_PID_FILE) {
char buffer[SIGAR_PATH_MAX+1];
int status =
sigar_file2str((const char *)branch->data,
sigar_file2str((const char *)branch->data.str,
buffer, sizeof(buffer)-1);
if (status != SIGAR_OK) {
return status;
@ -587,7 +597,7 @@ static int ptql_pid_match(sigar_t *sigar,
#endif
}
else {
match_pid = (sigar_pid_t)branch->data;
match_pid = branch->data.pid;
}
return (pid == match_pid) ? SIGAR_OK : !SIGAR_OK;
@ -597,13 +607,13 @@ static int ptql_args_branch_init(ptql_parse_branch_t *parsed,
ptql_branch_t *branch)
{
if (strEQ(parsed->attr, "*")) {
branch->data = NULL;
branch->op_flags |= PTQL_OP_FLAG_GLOB;
}
else {
char *end;
branch->data =
(void*)strtol(parsed->attr, &end, 10);
branch->data.ui32 =
strtol(parsed->attr, &end, 10);
if (end && *end) {
/* conversion failed */
@ -627,7 +637,7 @@ static int ptql_args_match(sigar_t *sigar,
return status;
}
if (!branch->data) {
if (branch->op_flags & PTQL_OP_FLAG_GLOB) {
int i;
for (i=0; i<args.number; i++) {
matched =
@ -640,7 +650,7 @@ static int ptql_args_match(sigar_t *sigar,
}
}
else {
int num = (int)branch->data;
int num = branch->data.ui32;
/* e.g. find last element of args: Args.-1.eq=weblogic.Server */
if (num < 0) {
@ -695,12 +705,12 @@ static int ptql_env_match(sigar_t *sigar,
sigar_proc_env_entry_t entry;
/* XXX ugh this is klunky */
entry.key = branch->data;
entry.key = branch->data.str;
entry.klen = branch->data_size;
entry.val = NULL;
procenv.type = SIGAR_PROC_ENV_KEY;
procenv.key = branch->data;
procenv.key = branch->data.str;
procenv.klen = branch->data_size;
procenv.env_getter = sigar_proc_env_get_key;
procenv.data = &entry;
@ -734,7 +744,7 @@ static int ptql_branch_init_port(ptql_parse_branch_t *parsed,
return SIGAR_PTQL_MALFORMED_QUERY;
}
branch->data = (void*)atoi(parsed->value); /*XXX*/
branch->data.ui32 = atoi(parsed->value); /*XXX*/
return SIGAR_OK;
}
@ -746,7 +756,7 @@ static int ptql_port_match(sigar_t *sigar,
ptql_branch_t *branch =
(ptql_branch_t *)data;
unsigned long port =
(unsigned long)branch->data;
branch->data.ui32;
int status;
sigar_pid_t match_pid=0;
@ -922,7 +932,7 @@ static int ptql_branch_add(ptql_parse_branch_t *parsed,
PTQL_BRANCH_LIST_GROW(branches);
branch = &branches->data[branches->number++];
branch->data = NULL;
branch->data.ptr = NULL;
branch->data_size = 0;
branch->data_free = data_free;
branch->value_free = data_free;
@ -1151,11 +1161,11 @@ SIGAR_DECLARE(int) sigar_ptql_query_match(sigar_t *sigar,
}
else {
/* standard sigar_proc_*_get / structptr + offset */
if (!branch->data) {
if (!branch->data.ptr) {
branch->data_size = lookup->data_size;
branch->data = malloc(branch->data_size);
branch->data.ptr = malloc(branch->data_size);
}
status = lookup->get(sigar, pid, branch->data);
status = lookup->get(sigar, pid, branch->data.ptr);
if (status != SIGAR_OK) {
return status;
}