my_result_helper.c File Reference

functions to extract result values More...

#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_mysql_compat.h"
#include "gnunet_my_lib.h"

Include dependency graph for my_result_helper.c:

Go to the source code of this file.

Functions
static int	pre_extract_varsize_blob (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	extract data from a Mysql database result at row row More...
static int	post_extract_varsize_blob (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	extract data from a Mysql database result at row row More...
static void	cleanup_varsize_blob (void *cls, struct GNUNET_MY_ResultSpec *rs)
	extract data from a Mysql database result at row row More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_variable_size (void **dst, size_t *ptr_size)
	Variable-size result expected. More...
static int	pre_extract_fixed_blob (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a Mysql database result at row row. More...
static int	post_extract_fixed_blob (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Check size of extracted fixed size data from a Mysql database result at row row. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_fixed_size (void *ptr, size_t ptr_size)
	Fixed-size result expected. More...
static int	pre_extract_rsa_public_key (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a Mysql database result at row row. More...
static int	post_extract_rsa_public_key (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Check size of extracted fixed size data from a Mysql database result at row row. More...
static void	clean_rsa_public_key (void *cls, struct GNUNET_MY_ResultSpec *rs)
	Function called to clean up memory allocated by a GNUNET_MY_ResultConverter. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_rsa_public_key (struct GNUNET_CRYPTO_RsaPublicKey **rsa)
	RSA public key expected. More...
static int	pre_extract_rsa_signature (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a Mysql database result at row row. More...
static int	post_extract_rsa_signature (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a Mysql database result at row row. More...
static void	clean_rsa_signature (void *cls, struct GNUNET_MY_ResultSpec *rs)
	Function called to clean up memory allocated by a GNUNET_MY_ResultConverter. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_rsa_signature (struct GNUNET_CRYPTO_RsaSignature **sig)
	RSA signature expected. More...
static int	pre_extract_string (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a Mysql database result at row row. More...
static int	post_extract_string (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Check size of extracted fixed size data from a Mysql database. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_string (char **dst)
	0- terminated string exprected. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_absolute_time (struct GNUNET_TIME_Absolute *at)
	Absolute time expected. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_absolute_time_nbo (struct GNUNET_TIME_AbsoluteNBO *at)
	Absolute time in network byte order expected. More...
static int	pre_extract_uint16 (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a Postgres database result at row row. More...
static int	post_extract_uint16 (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Check size of extracted fixed size data from a Mysql database. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_uint16 (uint16_t *u16)
	uint16_t expected More...
static int	pre_extract_uint32 (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a MYSQL database result at row row. More...
static int	post_extract_uint32 (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a MYSQL database result at row row. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_uint32 (uint32_t *u32)
	uint32_t expected More...
static int	pre_extract_uint64 (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Extract data from a MYSQL database result at row row. More...
static int	post_extract_uint64 (void *cls, struct GNUNET_MY_ResultSpec *rs, MYSQL_STMT *stmt, unsigned int column, MYSQL_BIND *results)
	Check size of extracted fixed-size data from a Mysql database. More...
struct GNUNET_MY_ResultSpec	GNUNET_MY_result_spec_uint64 (uint64_t *u64)
	uint64_t expected. More...

Detailed Description

functions to extract result values

Author

Christophe Genevey

Definition in file my_result_helper.c.

Function Documentation

pre_extract_varsize_blob()

static int pre_extract_varsize_blob ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

extract data from a Mysql database result at row row

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	result	mysql result

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid

Definition at line 45 of file my_result_helper.c.

{
  results[0].buffer = NULL;
  results[0].buffer_length = 0;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_OK, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_varsize_blob()

static int post_extract_varsize_blob ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

extract data from a Mysql database result at row row

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid

Definition at line 74 of file my_result_helper.c.

{
  void *buf;
  size_t size;
 
  if (*results->is_null)
    return GNUNET_SYSERR;
  size = (size_t) rs->mysql_bind_output_length;
 
  if (rs->mysql_bind_output_length != size)
    return GNUNET_SYSERR; /* 'unsigned long' does not fit in size_t!? */
 
  buf = GNUNET_malloc (size);
 
  results[0].buffer = buf;
  results[0].buffer_length = size;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
 
  if (0 !=
      mysql_stmt_fetch_column (stmt,
                               results,
                               column,
                               0))
  {
    GNUNET_free (buf);
    return GNUNET_SYSERR;
  }
 
  *(void **) rs->dst = buf;
  *rs->result_size = size;
 
  return GNUNET_OK;
}

References buf, GNUNET_MY_ResultSpec::dst, GNUNET_free, GNUNET_malloc, GNUNET_OK, GNUNET_SYSERR, GNUNET_MY_ResultSpec::mysql_bind_output_length, GNUNET_MY_ResultSpec::result_size, results, and size.

cleanup_varsize_blob()

static void cleanup_varsize_blob ( void *  cls, struct GNUNET_MY_ResultSpec *  rs  )

static

extract data from a Mysql database result at row row

Parameters

	cls	closure
[in,out]	rs

Definition at line 120 of file my_result_helper.c.

{
  void **ptr = (void **) rs->dst;
 
  if (NULL != *ptr)
  {
    GNUNET_free (*ptr);
    *ptr = NULL;
  }
}

References GNUNET_MY_ResultSpec::dst, and GNUNET_free.

pre_extract_fixed_blob()

static int pre_extract_fixed_blob ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a Mysql database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid(non-existing field or NULL)

Definition at line 163 of file my_result_helper.c.

{
  results[0].buffer = rs->dst;
  results[0].buffer_length = rs->dst_size;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_MY_ResultSpec::dst, GNUNET_MY_ResultSpec::dst_size, GNUNET_OK, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_fixed_blob()

static int post_extract_fixed_blob ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Check size of extracted fixed size data from a Mysql database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid(non-existing field or NULL)

Definition at line 194 of file my_result_helper.c.

{
  if (*results->is_null)
    return GNUNET_SYSERR;
  if (rs->dst_size != rs->mysql_bind_output_length)
    return GNUNET_SYSERR;
  return GNUNET_OK;
}

pre_extract_rsa_public_key()

static int pre_extract_rsa_public_key ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a Mysql database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 246 of file my_result_helper.c.

{
  results[0].buffer = NULL;
  results[0].buffer_length = 0;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_OK, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_rsa_public_key()

static int post_extract_rsa_public_key ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Check size of extracted fixed size data from a Mysql database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 277 of file my_result_helper.c.

{
  struct GNUNET_CRYPTO_RsaPublicKey **pk = rs->dst;
  void *buf;
  size_t size;
 
  if (*results->is_null)
    return GNUNET_SYSERR;
  size = (size_t) rs->mysql_bind_output_length;
 
  if (rs->mysql_bind_output_length != size)
    return GNUNET_SYSERR; /* 'unsigned long' does not fit in size_t!? */
  buf = GNUNET_malloc (size);
 
  results[0].buffer = buf;
  results[0].buffer_length = size;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
  if (0 !=
      mysql_stmt_fetch_column (stmt,
                               results,
                               column,
                               0))
  {
    GNUNET_free (buf);
    return GNUNET_SYSERR;
  }
 
  *pk = GNUNET_CRYPTO_rsa_public_key_decode (buf,
                                             size);
  GNUNET_free (buf);
  if (NULL == *pk)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Results contains bogus public key value (fail to decode)\n");
    return GNUNET_SYSERR;
  }
 
  return GNUNET_OK;
}

References buf, GNUNET_MY_ResultSpec::dst, GNUNET_CRYPTO_rsa_public_key_decode(), GNUNET_ERROR_TYPE_ERROR, GNUNET_free, GNUNET_log, GNUNET_malloc, GNUNET_OK, GNUNET_SYSERR, GNUNET_MY_ResultSpec::mysql_bind_output_length, pk, results, and size.

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clean_rsa_public_key()

static void clean_rsa_public_key ( void *  cls, struct GNUNET_MY_ResultSpec *  rs  )

static

Function called to clean up memory allocated by a GNUNET_MY_ResultConverter.

Parameters

cls	closure
rs	result data to clean up

Definition at line 331 of file my_result_helper.c.

{
  struct GNUNET_CRYPTO_RsaPublicKey **pk = rs->dst;
 
  if (NULL != *pk)
  {
    GNUNET_CRYPTO_rsa_public_key_free (*pk);
    *pk = NULL;
  }
}

References GNUNET_MY_ResultSpec::dst, GNUNET_CRYPTO_rsa_public_key_free(), and pk.

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pre_extract_rsa_signature()

static int pre_extract_rsa_signature ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a Mysql database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 380 of file my_result_helper.c.

{
  results[0].buffer = 0;
  results[0].buffer_length = 0;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_OK, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_rsa_signature()

static int post_extract_rsa_signature ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a Mysql database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 410 of file my_result_helper.c.

{
  struct GNUNET_CRYPTO_RsaSignature **sig = rs->dst;
  void *buf;
  size_t size;
 
  if (*results->is_null)
    return GNUNET_SYSERR;
  size = (size_t) rs->mysql_bind_output_length;
 
  if (rs->mysql_bind_output_length != size)
    return GNUNET_SYSERR; /* 'unsigned long' does not fit in size_t!? */
  buf = GNUNET_malloc (size);
 
  results[0].buffer = buf;
  results[0].buffer_length = size;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
  if (0 !=
      mysql_stmt_fetch_column (stmt,
                               results,
                               column,
                               0))
  {
    GNUNET_free (buf);
    return GNUNET_SYSERR;
  }
 
  *sig = GNUNET_CRYPTO_rsa_signature_decode (buf,
                                             size);
  GNUNET_free (buf);
  if (NULL == *sig)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Resuls contains bogus signature value (fails to decode)\n");
    return GNUNET_SYSERR;
  }
  return GNUNET_OK;
}

References buf, GNUNET_MY_ResultSpec::dst, GNUNET_CRYPTO_rsa_signature_decode(), GNUNET_ERROR_TYPE_ERROR, GNUNET_free, GNUNET_log, GNUNET_malloc, GNUNET_OK, GNUNET_SYSERR, GNUNET_MY_ResultSpec::mysql_bind_output_length, results, and size.

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clean_rsa_signature()

static void clean_rsa_signature ( void *  cls, struct GNUNET_MY_ResultSpec *  rs  )

static

Function called to clean up memory allocated by a GNUNET_MY_ResultConverter.

Parameters

cls	closure
rd	result data to clean up

Definition at line 462 of file my_result_helper.c.

{
  struct GNUNET_CRYPTO_RsaSignature **sig = rs->dst;
 
  if (NULL != *sig)
  {
    GNUNET_CRYPTO_rsa_signature_free (*sig);
    *sig = NULL;
  }
}

References GNUNET_MY_ResultSpec::dst, and GNUNET_CRYPTO_rsa_signature_free().

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pre_extract_string()

static int pre_extract_string ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a Mysql database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non existing field or NULL)

Definition at line 510 of file my_result_helper.c.

{
  results[0].buffer = NULL;
  results[0].buffer_length = 0;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_OK, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_string()

static int post_extract_string ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Check size of extracted fixed size data from a Mysql database.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non existing field or NULL)

Definition at line 540 of file my_result_helper.c.

{
  size_t size = (size_t) rs->mysql_bind_output_length;
  char *buf;
 
  if (rs->mysql_bind_output_length != size)
    return GNUNET_SYSERR;
  if (*results->is_null)
  {
    *(void **) rs->dst = NULL;
    return GNUNET_OK;
  }
 
  buf = GNUNET_malloc (size);
  results[0].buffer = buf;
  results[0].buffer_length = size;
  results[0].buffer_type = MYSQL_TYPE_BLOB;
 
  if (0 !=
      mysql_stmt_fetch_column (stmt,
                               results,
                               column,
                               0))
  {
    GNUNET_free (buf);
    return GNUNET_SYSERR;
  }
  buf[size] = '\0';
  *(void **) rs->dst = buf;
  return GNUNET_OK;
}

pre_extract_uint16()

static int pre_extract_uint16 ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a Postgres database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_YES if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 642 of file my_result_helper.c.

{
  results[0].buffer = rs->dst;
  results[0].buffer_length = rs->dst_size;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].buffer_type = MYSQL_TYPE_SHORT;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_MY_ResultSpec::dst, GNUNET_MY_ResultSpec::dst_size, GNUNET_OK, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_uint16()

static int post_extract_uint16 ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Check size of extracted fixed size data from a Mysql database.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_YES if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 672 of file my_result_helper.c.

{
  if (rs->dst_size != rs->mysql_bind_output_length)
    return GNUNET_SYSERR;
  if (*results->is_null)
    return GNUNET_SYSERR;
  return GNUNET_OK;
}

pre_extract_uint32()

static int pre_extract_uint32 ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a MYSQL database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 721 of file my_result_helper.c.

{
  results[0].buffer = rs->dst;
  results[0].buffer_length = rs->dst_size;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].buffer_type = MYSQL_TYPE_LONG;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_MY_ResultSpec::dst, GNUNET_MY_ResultSpec::dst_size, GNUNET_OK, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_uint32()

static int post_extract_uint32 ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a MYSQL database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 751 of file my_result_helper.c.

{
  if (rs->dst_size != rs->mysql_bind_output_length)
    return GNUNET_SYSERR;
  if (*results->is_null)
    return GNUNET_SYSERR;
  return GNUNET_OK;
}

pre_extract_uint64()

static int pre_extract_uint64 ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Extract data from a MYSQL database result at row row.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 800 of file my_result_helper.c.

{
  if (sizeof(uint64_t) != rs->dst_size)
    return GNUNET_SYSERR;
  results[0].buffer = rs->dst;
  results[0].buffer_length = rs->dst_size;
  results[0].length = &rs->mysql_bind_output_length;
  results[0].buffer_type = MYSQL_TYPE_LONGLONG;
  results[0].is_null = &rs->is_null;
  rs->is_null = 0;
 
  return GNUNET_OK;
}

References GNUNET_MY_ResultSpec::dst, GNUNET_MY_ResultSpec::dst_size, GNUNET_OK, GNUNET_SYSERR, GNUNET_MY_ResultSpec::is_null, GNUNET_MY_ResultSpec::mysql_bind_output_length, and results.

post_extract_uint64()

static int post_extract_uint64 ( void *  cls, struct GNUNET_MY_ResultSpec *  rs, MYSQL_STMT *  stmt, unsigned int  column, MYSQL_BIND *  results  )

static

Check size of extracted fixed-size data from a Mysql database.

Parameters

	cls	closure
[in,out]	rs
	stmt	the mysql statement that is being run
	column	the column that is being processed
[out]	results

Returns

GNUNET_OK if all results could be extracted GNUNET_SYSERR if a result was invalid (non-existing field or NULL)

Definition at line 832 of file my_result_helper.c.

{
  if (sizeof(uint64_t) != rs->dst_size)
    return GNUNET_SYSERR;
  if (*results->is_null)
    return GNUNET_SYSERR;
  return GNUNET_OK;
}