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17c79a9e23
Besides adapting the components to the use of base/log.h, the patch cleans up a few base headers, i.e., it removes unused includes from root/component.h, specifically base/heap.h and ram_session/ram_session.h. Hence, components that relied on the implicit inclusion of those headers have to manually include those headers now. While adjusting the log messages, I repeatedly stumbled over the problem that printing char * arguments is ambiguous. It is unclear whether to print the argument as pointer or null-terminated string. To overcome this problem, the patch introduces a new type 'Cstring' that allows the caller to express that the argument should be handled as null-terminated string. As a nice side effect, with this type in place, the optional len argument of the 'String' class could be removed. Instead of supplying a pair of (char const *, size_t), the constructor accepts a 'Cstring'. This, in turn, clears the way let the 'String' constructor use the new output mechanism to assemble a string from multiple arguments (and thereby getting rid of snprintf within Genode in the near future). To enforce the explicit resolution of the char * ambiguity, the 'char *' overload of the 'print' function is marked as deleted. Issue #1987 |
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| .. | ||
| main.cc | ||
| README | ||
| rom_registry.h | ||
| target.mk | ||
The "report_rom" component is both a report service and a ROM service. It makes incoming reports available as ROM modules. The ROM modules are named after the label of the corresponding report session. Configuration ------------- The report-ROM server hands out ROM modules only if explicitly permitted by a configured policy. For example: ! <config> ! <policy label="decorator -> pointer" report="nitpicker -> pointer"/> ! <policy ... /> ! ... ! </config> The label of an incoming ROM session is matched against the 'label' attribute of all '<policy>' nodes. If the session label matches a policy label, the client obtains the data from the report client with the label specified in the 'report' attribute. In the example above, the nitpicker GUI server sends reports about the pointer position to the report-ROM service. Those reports are handed out to a window decorator (labeled "decorator") as ROM module. The component can be configured to write all incoming reports to the LOG output by setting the 'verbose' attribute of the '<config>' node to "yes".