mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Dependents:   hello SerialTestv11 SerialTestv12 Sierpinski ... more

mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

drivers/LocalFileSystem.h@134:ad3be0349dc5, 2017-01-16 (annotated)

Committer:
<>
Date:
Mon Jan 16 12:05:23 2017 +0000
Revision:
134:ad3be0349dc5
Parent:
128:9bcdf88f62b0 
Release 134 of the mbed library



Ports for Upcoming Targets





Fixes and Changes



3488: Dev stm i2c v2 unitary functions https://github.com/ARMmbed/mbed-os/pull/3488

3492: Fix #3463 CAN read() return value https://github.com/ARMmbed/mbed-os/pull/3492

3503: [LPC15xx] Ensure that PWM=1 is resolved correctly https://github.com/ARMmbed/mbed-os/pull/3503

3504: [LPC15xx] CAN implementation improvements https://github.com/ARMmbed/mbed-os/pull/3504

3539: NUCLEO_F412ZG - Add support of TRNG peripheral https://github.com/ARMmbed/mbed-os/pull/3539

3540: STM: SPI: Initialize Rx in spi_master_write https://github.com/ARMmbed/mbed-os/pull/3540

3438: K64F: Add support for SERIAL ASYNCH API https://github.com/ARMmbed/mbed-os/pull/3438

3519: MCUXpresso: Fix ENET driver to enable interrupts after interrupt handler is set https://github.com/ARMmbed/mbed-os/pull/3519

3544: STM32L4 deepsleep improvement https://github.com/ARMmbed/mbed-os/pull/3544

3546: NUCLEO-F412ZG - Add CAN peripheral https://github.com/ARMmbed/mbed-os/pull/3546

3551: Fix I2C driver for RZ/A1H https://github.com/ARMmbed/mbed-os/pull/3551

3558: K64F UART Asynch API: Fix synchronization issue https://github.com/ARMmbed/mbed-os/pull/3558

3563: LPC4088 - Fix vector checksum https://github.com/ARMmbed/mbed-os/pull/3563

3567: Dev stm32 F0 v1.7.0 https://github.com/ARMmbed/mbed-os/pull/3567

3577: Fixes linking errors when building with debug profile https://github.com/ARMmbed/mbed-os/pull/3577

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 128:9bcdf88f62b0 1 /* mbed Microcontroller Library
<> 128:9bcdf88f62b0 2 * Copyright (c) 2006-2013 ARM Limited
<> 128:9bcdf88f62b0 3 *
<> 128:9bcdf88f62b0 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 128:9bcdf88f62b0 5 * you may not use this file except in compliance with the License.
<> 128:9bcdf88f62b0 6 * You may obtain a copy of the License at
<> 128:9bcdf88f62b0 7 *
<> 128:9bcdf88f62b0 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 128:9bcdf88f62b0 9 *
<> 128:9bcdf88f62b0 10 * Unless required by applicable law or agreed to in writing, software
<> 128:9bcdf88f62b0 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 128:9bcdf88f62b0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 128:9bcdf88f62b0 13 * See the License for the specific language governing permissions and
<> 128:9bcdf88f62b0 14 * limitations under the License.
<> 128:9bcdf88f62b0 15 */
<> 128:9bcdf88f62b0 16 #ifndef MBED_LOCALFILESYSTEM_H
<> 128:9bcdf88f62b0 17 #define MBED_LOCALFILESYSTEM_H
<> 128:9bcdf88f62b0 18
<> 128:9bcdf88f62b0 19 #include "platform/platform.h"
<> 128:9bcdf88f62b0 20
<> 128:9bcdf88f62b0 21 #if DEVICE_LOCALFILESYSTEM
<> 128:9bcdf88f62b0 22
<> 128:9bcdf88f62b0 23 #include "drivers/FileSystemLike.h"
<> 128:9bcdf88f62b0 24 #include "platform/PlatformMutex.h"
<> 128:9bcdf88f62b0 25
<> 128:9bcdf88f62b0 26 namespace mbed {
<> 128:9bcdf88f62b0 27 /** \addtogroup drivers */
<> 128:9bcdf88f62b0 28 /** @{*/
<> 128:9bcdf88f62b0 29
<> 128:9bcdf88f62b0 30 FILEHANDLE local_file_open(const char* name, int flags);
<> 128:9bcdf88f62b0 31
<> 128:9bcdf88f62b0 32 class LocalFileHandle : public FileHandle {
<> 128:9bcdf88f62b0 33
<> 128:9bcdf88f62b0 34 public:
<> 128:9bcdf88f62b0 35 LocalFileHandle(FILEHANDLE fh);
<> 128:9bcdf88f62b0 36
<> 128:9bcdf88f62b0 37 virtual int close();
<> 128:9bcdf88f62b0 38
<> 128:9bcdf88f62b0 39 virtual ssize_t write(const void *buffer, size_t length);
<> 128:9bcdf88f62b0 40
<> 128:9bcdf88f62b0 41 virtual ssize_t read(void *buffer, size_t length);
<> 128:9bcdf88f62b0 42
<> 128:9bcdf88f62b0 43 virtual int isatty();
<> 128:9bcdf88f62b0 44
<> 128:9bcdf88f62b0 45 virtual off_t lseek(off_t position, int whence);
<> 128:9bcdf88f62b0 46
<> 128:9bcdf88f62b0 47 virtual int fsync();
<> 128:9bcdf88f62b0 48
<> 128:9bcdf88f62b0 49 virtual off_t flen();
<> 128:9bcdf88f62b0 50
<> 128:9bcdf88f62b0 51 protected:
<> 128:9bcdf88f62b0 52 virtual void lock();
<> 128:9bcdf88f62b0 53 virtual void unlock();
<> 128:9bcdf88f62b0 54 FILEHANDLE _fh;
<> 128:9bcdf88f62b0 55 int pos;
<> 128:9bcdf88f62b0 56 PlatformMutex _mutex;
<> 128:9bcdf88f62b0 57 };
<> 128:9bcdf88f62b0 58
<> 128:9bcdf88f62b0 59 /** A filesystem for accessing the local mbed Microcontroller USB disk drive
<> 128:9bcdf88f62b0 60 *
<> 128:9bcdf88f62b0 61 * This allows programs to read and write files on the same disk drive that is used to program the
<> 128:9bcdf88f62b0 62 * mbed Microcontroller. Once created, the standard C file access functions are used to open,
<> 128:9bcdf88f62b0 63 * read and write files.
<> 128:9bcdf88f62b0 64 *
<> 128:9bcdf88f62b0 65 * @Note Synchronization level: Thread safe
<> 128:9bcdf88f62b0 66 *
<> 128:9bcdf88f62b0 67 * Example:
<> 128:9bcdf88f62b0 68 * @code
<> 128:9bcdf88f62b0 69 * #include "mbed.h"
<> 128:9bcdf88f62b0 70 *
<> 128:9bcdf88f62b0 71 * LocalFileSystem local("local"); // Create the local filesystem under the name "local"
<> 128:9bcdf88f62b0 72 *
<> 128:9bcdf88f62b0 73 * int main() {
<> 128:9bcdf88f62b0 74 * FILE *fp = fopen("/local/out.txt", "w"); // Open "out.txt" on the local file system for writing
<> 128:9bcdf88f62b0 75 * fprintf(fp, "Hello World!");
<> 128:9bcdf88f62b0 76 * fclose(fp);
<> 128:9bcdf88f62b0 77 * remove("/local/out.txt"); // Removes the file "out.txt" from the local file system
<> 128:9bcdf88f62b0 78 *
<> 128:9bcdf88f62b0 79 * DIR *d = opendir("/local"); // Opens the root directory of the local file system
<> 128:9bcdf88f62b0 80 * struct dirent *p;
<> 128:9bcdf88f62b0 81 * while((p = readdir(d)) != NULL) { // Print the names of the files in the local file system
<> 128:9bcdf88f62b0 82 * printf("%s\n", p->d_name); // to stdout.
<> 128:9bcdf88f62b0 83 * }
<> 128:9bcdf88f62b0 84 * closedir(d);
<> 128:9bcdf88f62b0 85 * }
<> 128:9bcdf88f62b0 86 * @endcode
<> 128:9bcdf88f62b0 87 *
<> 128:9bcdf88f62b0 88 * @note
<> 128:9bcdf88f62b0 89 * If the microcontroller program makes an access to the local drive, it will be marked as "removed"
<> 128:9bcdf88f62b0 90 * on the Host computer. This means it is no longer accessible from the Host Computer.
<> 128:9bcdf88f62b0 91 *
<> 128:9bcdf88f62b0 92 * The drive will only re-appear when the microcontroller program exists. Note that if the program does
<> 128:9bcdf88f62b0 93 * not exit, you will need to hold down reset on the mbed Microcontroller to be able to see the drive again!
<> 128:9bcdf88f62b0 94 */
<> 128:9bcdf88f62b0 95 class LocalFileSystem : public FileSystemLike {
<> 128:9bcdf88f62b0 96 // No modifiable state
<> 128:9bcdf88f62b0 97
<> 128:9bcdf88f62b0 98 public:
<> 128:9bcdf88f62b0 99 LocalFileSystem(const char* n) : FileSystemLike(n) {
<> 128:9bcdf88f62b0 100
<> 128:9bcdf88f62b0 101 }
<> 128:9bcdf88f62b0 102
<> 128:9bcdf88f62b0 103 virtual FileHandle *open(const char* name, int flags);
<> 128:9bcdf88f62b0 104 virtual int remove(const char *filename);
<> 128:9bcdf88f62b0 105 virtual DirHandle *opendir(const char *name);
<> 128:9bcdf88f62b0 106 };
<> 128:9bcdf88f62b0 107
<> 128:9bcdf88f62b0 108 } // namespace mbed
<> 128:9bcdf88f62b0 109
<> 128:9bcdf88f62b0 110 #endif
<> 128:9bcdf88f62b0 111
<> 128:9bcdf88f62b0 112 #endif
<> 128:9bcdf88f62b0 113
<> 128:9bcdf88f62b0 114 /** @}*/