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shmop.php
64 lines
| 1 | <?php |
| 2 | |
| 3 | namespace ProfilePressVendor\Safe; |
| 4 | |
| 5 | use ProfilePressVendor\Safe\Exceptions\ShmopException; |
| 6 | /** |
| 7 | * shmop_delete is used to delete a shared memory block. |
| 8 | * |
| 9 | * @param resource $shmid The shared memory block resource created by |
| 10 | * shmop_open |
| 11 | * @throws ShmopException |
| 12 | * |
| 13 | */ |
| 14 | function shmop_delete($shmid): void |
| 15 | { |
| 16 | error_clear_last(); |
| 17 | $result = \shmop_delete($shmid); |
| 18 | if ($result === \false) { |
| 19 | throw ShmopException::createFromPhpError(); |
| 20 | } |
| 21 | } |
| 22 | /** |
| 23 | * shmop_read will read a string from shared memory block. |
| 24 | * |
| 25 | * @param resource $shmid The shared memory block identifier created by |
| 26 | * shmop_open |
| 27 | * @param int $start Offset from which to start reading |
| 28 | * @param int $count The number of bytes to read. |
| 29 | * 0 reads shmop_size($shmid) - $start bytes. |
| 30 | * @return string Returns the data. |
| 31 | * @throws ShmopException |
| 32 | * |
| 33 | */ |
| 34 | function shmop_read($shmid, int $start, int $count): string |
| 35 | { |
| 36 | error_clear_last(); |
| 37 | $result = \shmop_read($shmid, $start, $count); |
| 38 | if ($result === \false) { |
| 39 | throw ShmopException::createFromPhpError(); |
| 40 | } |
| 41 | return $result; |
| 42 | } |
| 43 | /** |
| 44 | * shmop_write will write a string into shared memory block. |
| 45 | * |
| 46 | * @param resource $shmid The shared memory block identifier created by |
| 47 | * shmop_open |
| 48 | * @param string $data A string to write into shared memory block |
| 49 | * @param int $offset Specifies where to start writing data inside the shared memory |
| 50 | * segment. |
| 51 | * @return int The size of the written data. |
| 52 | * @throws ShmopException |
| 53 | * |
| 54 | */ |
| 55 | function shmop_write($shmid, string $data, int $offset): int |
| 56 | { |
| 57 | error_clear_last(); |
| 58 | $result = \shmop_write($shmid, $data, $offset); |
| 59 | if ($result === \false) { |
| 60 | throw ShmopException::createFromPhpError(); |
| 61 | } |
| 62 | return $result; |
| 63 | } |
| 64 |